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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: Feb 16, 2015 07:21 Post subject: Re: Collection of Fiebre Verde - Chivor (#367) |
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This specimen is a good example of the material that can be found in Chivor.
Emeralds are shaped like long thin pencil leads and show a strong bluish cast.
Tiny nodules of crystallized pyrite can be seen in the close-up image.
Host rock is grey shale.
These combined characteristics leave little doubt about the origin of this specimen.
Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 140x110x43mm |
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31190 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 140x110x43mm |
Description: |
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31138 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 140x110x43mm |
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31156 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: Feb 18, 2015 05:40 Post subject: Re: Collection of Fiebre Verde - La Pita (#533) |
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Nice little aggregate of emeralds.
Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 54x36x60mm, xl=8mm |
Description: |
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31088 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 54x36x60mm, xl=8mm |
Description: |
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31056 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 54x36x60mm, xl=8mm |
Description: |
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31110 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 54x36x60mm, xl=8mm |
Description: |
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31063 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 54x36x60mm, xl=8mm |
Description: |
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31086 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 54x36x60mm, xl=8mm |
Description: |
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31117 Time(s) |
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4108
Location: Germany
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Posted: Feb 18, 2015 10:39 Post subject: Re: Collection of Fiebre Verde |
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GORGEOUS!!!
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: Feb 18, 2015 10:55 Post subject: Re: Collection of Fiebre Verde |
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Thanks Tobi!
For sure Colombia is a good source of fine beryls...
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: Feb 19, 2015 09:30 Post subject: Re: Collection of Fiebre Verde - Muzo (#129) |
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At first glance this Muzo specimen does not look very appealing.
Just a couple of incomplete crystals perched on a dull calcite matrix (first image).
But as we get closer, some details start to sparkle.
Actually the round-shaped emerald on the edge of the specimen is a survivor - it has a true faceting grade!
Don't know how it escaped from the standard carnage. It might have been "protected" by a larger crystal nearby.
Mineral: | Beryl (variety emerald), Calcite |
Locality: | Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 60x47x49mm, central xl=16mm |
Description: |
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Viewed: |
30940 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 60x47x49mm, central xl=16mm |
Description: |
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Viewed: |
30957 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 60x47x49mm, central xl=16mm |
Description: |
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Viewed: |
30898 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 60x47x49mm, central xl=16mm |
Description: |
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Viewed: |
30881 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 60x47x49mm, central xl=16mm |
Description: |
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30912 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 60x47x49mm, central xl=16mm |
Description: |
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Viewed: |
30885 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 60x47x49mm, central xl=16mm |
Description: |
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Viewed: |
30856 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 60x47x49mm, central xl=16mm |
Description: |
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Viewed: |
30928 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 60x47x49mm, central xl=16mm |
Description: |
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Viewed: |
30899 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: Feb 20, 2015 15:57 Post subject: Re: Collection of Fiebre Verde - La Pita/Polveros (#78) |
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The Polveros deposit has been known from the early 90’s, but it began producing commercial quantities only in the late 90’s.
This specimen is from the early production of this locality. It's a good example of the fine calcite crystals associated to the emeralds that comes out from the La Pita district.
The last 5 images look very much similar - I just could not resist!
Host rock is black shale.
Mineral: | Beryl (variety emerald), Calcite |
Locality: | La Pita mining district, Polveros Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 110x85x85mm, xl=30mm |
Description: |
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30807 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | La Pita mining district, Polveros Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 110x85x85mm, xl=30mm |
Description: |
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Viewed: |
30840 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | La Pita mining district, Polveros Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 110x85x85mm, xl=30mm |
Description: |
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Viewed: |
30801 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | La Pita mining district, Polveros Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 110x85x85mm, xl=30mm |
Description: |
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Viewed: |
30815 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | La Pita mining district, Polveros Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 110x85x85mm, xl=30mm |
Description: |
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Viewed: |
30816 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | La Pita mining district, Polveros Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 110x85x85mm, xl=30mm |
Description: |
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Viewed: |
30793 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | La Pita mining district, Polveros Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 110x85x85mm, xl=30mm |
Description: |
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Viewed: |
30829 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | La Pita mining district, Polveros Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 110x85x85mm, xl=30mm |
Description: |
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Viewed: |
30811 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | La Pita mining district, Polveros Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 110x85x85mm, xl=30mm |
Description: |
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Viewed: |
30846 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: Feb 21, 2015 07:46 Post subject: Re: Collection of Fiebre Verde - Broken crystal from La Pita (#173) |
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What makes this specimen interesting is... a broken crystal.
Due to pressure, crystal has broken into two almost equal parts, orthogonally to the c-axis.
Following this phase, the thermochemical conditions were favorable for a recrystallization of the discontinuity surfaces.
The upper half of the crystal is contacted.
Mineral: | Beryl (variety emerald), Calcite |
Locality: | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 60x55x80mm, xl=6+8mm |
Description: |
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Viewed: |
30741 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 60x55x80mm, xl=6+8mm |
Description: |
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Viewed: |
30767 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 60x55x80mm, xl=6+8mm |
Description: |
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Viewed: |
30758 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 60x55x80mm, xl=6+8mm |
Description: |
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Viewed: |
30783 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 60x55x80mm, xl=6+8mm |
Description: |
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Viewed: |
30749 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 60x55x80mm, xl=6+8mm |
Description: |
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Viewed: |
30779 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 60x55x80mm, xl=6+8mm |
Description: |
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Viewed: |
30785 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 60x55x80mm, xl=6+8mm |
Description: |
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Viewed: |
30725 Time(s) |
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4108
Location: Germany
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Posted: Feb 21, 2015 12:09 Post subject: Re: Collection of Fiebre Verde |
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For sure one of the most aesthetic "damaged" mineral specimens ever ;-)
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: Feb 21, 2015 12:53 Post subject: Re: Collection of Fiebre Verde |
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Tobi wrote: | For sure one of the most aesthetic "damaged" mineral specimens ever ;-) |
Thanks Tobi.
Once I managed to damage a small crystal (in matrix) but the result was far from being as satisfactory as what nature has done to this one. After the repair my crystal looked even worse.
Gérard
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: Feb 22, 2015 11:15 Post subject: Re: Collection of Fiebre Verde - Muzo with quartz (#228) |
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Emerald and quartz nicely perched on a large calcite rhomb.
There are a few patches of non-crystallized pyrite on the black shale host rock (not featured in the images).
Mineral: | Beryl (variety emerald), Calcite, Pyrite, Quartz |
Locality: | Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 105x65x60mm, xl=24mm |
Description: |
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Viewed: |
30615 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite, Quartz |
Locality: | Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 105x65x60mm, xl=24mm |
Description: |
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Viewed: |
30658 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite, Quartz |
Locality: | Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 105x65x60mm, xl=24mm |
Description: |
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Viewed: |
30677 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite, Quartz |
Locality: | Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 105x65x60mm, xl=24mm |
Description: |
Another quartz crystal next to the main calcite rhomb. Actually 2 crystals as there is a second crystal, much smaller, standing orthogonal to the c-axis of the main one. |
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30682 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: Feb 22, 2015 18:34 Post subject: Re: Collection of Fiebre Verde - Chivor (#449) |
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Some emeralds are valued for their internal "fire".
This one could fall in this category as the top 3 mm is literally on fire.
This is the direct result of a fracture which runs across the entire prism perpendicularly to the c-axis and reflects most of the light.
The crystals have a strong bluish cast and are striated parallel to the c-axis, a feature I have only seen in Chivor emeralds.
But the most striking feature is the basal pinacoid termination which has very complex crystallization patterns. These rugged markings on the C-face combined with the reflected beam produces a stunning visual effect.
Host rock is black shale coated with an aggregate of white albite (variety cleavelandite).
Mineral: | Beryl (variety emerald), Calcite, Pyrite, Albite (variety cleavelandite) |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 70x46x34mm, main xl=18mm |
Description: |
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Viewed: |
30592 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite, Albite (variety cleavelandite) |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 70x46x34mm, main xl=18mm |
Description: |
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Viewed: |
30606 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite, Albite (variety cleavelandite) |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 70x46x34mm, main xl=18mm |
Description: |
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Viewed: |
30624 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite, Albite (variety cleavelandite) |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 70x46x34mm, main xl=18mm |
Description: |
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Viewed: |
30614 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite, Albite (variety cleavelandite) |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 70x46x34mm, main xl=18mm |
Description: |
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Viewed: |
30585 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite, Albite (variety cleavelandite) |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 70x46x34mm, main xl=18mm |
Description: |
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Viewed: |
30588 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite, Albite (variety cleavelandite) |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 70x46x34mm, main xl=18mm |
Description: |
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Viewed: |
30579 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite, Albite (variety cleavelandite) |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 70x46x34mm, main xl=18mm |
Description: |
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Viewed: |
30556 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite, Albite (variety cleavelandite) |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 70x46x34mm, main xl=18mm |
Description: |
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Viewed: |
30572 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite, Albite (variety cleavelandite) |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 70x46x34mm, main xl=18mm |
Description: |
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Viewed: |
30557 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: Feb 24, 2015 09:30 Post subject: Re: Collection of Fiebre Verde -Chivor (#171) |
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Another example of the typical material which can be found in Chivor.
The white material is calcite and the host rock is black shale.
The rather saturated main emerald crystal is literally pinched by pyrite.
Note the linear markings parallel to the c-axis all over the prism faces.
Are these features directly related to the crystal growth process or are they related to a dissolution mechanism?
Growth or dissolution or ... else? Am a bit puzzled...
Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 102x36x87mm, xl=13mm |
Description: |
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Viewed: |
30488 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 102x36x87mm, xl=13mm |
Description: |
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Viewed: |
30466 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 102x36x87mm, xl=13mm |
Description: |
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Viewed: |
30495 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 102x36x87mm, xl=13mm |
Description: |
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Viewed: |
30513 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 102x36x87mm, xl=13mm |
Description: |
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Viewed: |
30457 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 102x36x87mm, xl=13mm |
Description: |
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Viewed: |
30460 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 102x36x87mm, xl=13mm |
Description: |
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Viewed: |
30480 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 102x36x87mm, xl=13mm |
Description: |
This is the best I could do to capture the linear markings all over the prism faces. Growth, dissolution, else...? |
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30447 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: Feb 26, 2015 08:35 Post subject: Re: Collection of Fiebre Verde - La Pita with parisite (#53) |
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The Muzo/La Pita deposits are not only known for their quality emeralds.
This specimen is a good example of the orange-brown parisite that can be found in these districts.
Although parasite is a rare mineral, it is relatively common in the Muzo/La Pita districts.
This is where parisite was discovered first in 1835 by J.J. Paris, former leaseholder of the Muzo deposits in the early part of the 19th century.
The crystals are double hexagonal pyramids, with or without the base.
The emerald prism shape is unusual - the base is slightly wider than the top.
This feature is only observed in La Pita where the famous "botellas" (bottle-shape) crystals are found.
The emerald crystal is translucent and nearly inclusion-free.
Host rock is black shale.
Mineral: | Beryl (variety emerald), Calcite, Parisite |
Locality: | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 8x8x8cm, H35mm, xl=8mm |
Description: |
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Viewed: |
30421 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Parisite |
Locality: | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 8x8x8cm, H35mm, xl=8mm |
Description: |
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Viewed: |
30360 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Parisite |
Locality: | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 8x8x8cm, H35mm, xl=8mm |
Description: |
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Viewed: |
30394 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Parisite |
Locality: | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 8x8x8cm, H35mm, xl=8mm |
Description: |
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30378 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Parisite |
Locality: | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 8x8x8cm, H35mm, xl=8mm |
Description: |
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30383 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Parisite |
Locality: | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 8x8x8cm, H35mm, xl=8mm |
Description: |
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Viewed: |
30396 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Parisite |
Locality: | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 8x8x8cm, H35mm, xl=8mm |
Description: |
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30389 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Parisite |
Locality: | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 8x8x8cm, H35mm, xl=8mm |
Description: |
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Viewed: |
30336 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Parisite |
Locality: | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 8x8x8cm, H35mm, xl=8mm |
Description: |
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Viewed: |
30384 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Parisite |
Locality: | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | Detail - H=5mm |
Description: |
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Viewed: |
30364 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Parisite |
Locality: | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | Detail - H=3mm |
Description: |
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Viewed: |
30477 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: Feb 27, 2015 06:16 Post subject: Re: Collection of Fiebre Verde - Muzo (#55) |
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Aesthetic specimen with calcite from Muzo.
Mineral: | Beryl (variety emerald), Calcite |
Locality: | Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 25x29mm, xl=23mm |
Description: |
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Viewed: |
30336 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: Feb 28, 2015 10:30 Post subject: Re: Collection of Fiebre Verde - Chivor (#83) |
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A very rough rock from Chivor
The matrix is composed by interlaced fine-grained and coarse-grained limestone mixed with pyrite and calcite.
The rock is big enough to host more little cavities but I wouldn't dare to break it apart.
Unusual material.
Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 172x100x100mm, xl=18mm |
Description: |
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Viewed: |
30077 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 172x100x100mm, xl=18mm |
Description: |
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Viewed: |
30145 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite, Pyrite |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 172x100x100mm, xl=18mm |
Description: |
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Viewed: |
30136 Time(s) |
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4108
Location: Germany
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Posted: Mar 01, 2015 04:46 Post subject: Re: Collection of Fiebre Verde |
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It's such a wide variety of specimens from the Colombian emerald mines that we get to know through your work here, thanks again! How many emerald specimens do you possess overall?! ;-)
Tobi
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: Mar 01, 2015 05:49 Post subject: Re: Collection of Fiebre Verde |
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Tobi wrote: | It's such a wide variety of specimens from the Colombian emerald mines that we get to know through your work here, thanks again! How many emerald specimens do you possess overall?! ;-)
Tobi |
Thanks Tobi - I appreciate your comments!
I don't want to stick to just appealing specimens in this forum and I also like to share my fascination for unusual materials which contain green beryl. And the 2 Colombian mining belts are full of those!
As per your question, I don't know the exact figures. A couple of hundreds probably?
I am in the process of making an inventory - this is a tedious job. And since I keep getting new specimens, it seems like a never ending process...
For a long time I have been neglecting all the admin tasks related to mineral collecting. My backlog is still large...
I did not buy a lot from regular dealers so the labels I have do not cover much of my collection.
Gérard
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: Mar 01, 2015 09:50 Post subject: Re: Collection of Fiebre Verde - Muzo (#88) |
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Different world from the previous specimen (Chivor #83).
Massive piece of black shale coated with light gray and light brown calcite.
This is common material from the western belt.
I was told this specimen was from Muzo but it could as well be from Coscuez where elongated crystals are more commonly found.
A good discussion on the characteristics of the Muzo/Coscuez emeralds can be found in "Oppenheim, V. (1948): The Muzo Emerald Zone, Colombia, S. A; Economic Geology, Volume 43, pages 31-38."
Mineral: | Beryl (variety emerald), Calcite |
Locality: | Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 130x80x150mm, xl=53mm |
Description: |
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Viewed: |
30003 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 130x80x150mm, xl=53mm |
Description: |
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Viewed: |
30002 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: Mar 01, 2015 16:35 Post subject: Re: Collection of Fiebre Verde - Chivor (#345) |
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The overwhelming brownish hue is caused by iron oxide.
Even the original black shale host rock is oxidized.
Color of the beryl crystals tend toward a bluer green.
The black shale is coated by a 5mm thick layer of oxidized albite aggregate.
This specimen has a few interesting features which I have commented below.
Mineral: | Beryl (variety emerald), Albite (variety cleavelandite) |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 64x39x53mm, main xl=23mm |
Description: |
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Viewed: |
29987 Time(s) |
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Mineral: | Beryl (variety emerald), Albite (variety cleavelandite) |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 64x39x53mm, main xl=23mm |
Description: |
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Viewed: |
29989 Time(s) |
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Mineral: | Beryl (variety emerald), Albite (variety cleavelandite) |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 64x39x53mm, main xl=23mm |
Description: |
One of the crystal faces exhibits angular growth patterns. The one next to it (the furthest one) shows linear striations. |
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30001 Time(s) |
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Mineral: | Beryl (variety emerald), Albite (variety cleavelandite) |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 64x39x53mm, main xl=23mm |
Description: |
Note the shape of the isolated crystal. |
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Viewed: |
29965 Time(s) |
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Mineral: | Beryl (variety emerald), Albite (variety cleavelandite) |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 64x39x53mm, main xl=23mm |
Description: |
Aggregate or complex termination? |
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Viewed: |
29995 Time(s) |
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Mineral: | Beryl (variety emerald), Albite (variety cleavelandite) |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 64x39x53mm, main xl=23mm |
Description: |
Complex termination most likely ... |
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Viewed: |
30017 Time(s) |
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Mineral: | Beryl (variety emerald), Albite (variety cleavelandite) |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 64x39x53mm, main xl=23mm |
Description: |
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Viewed: |
29975 Time(s) |
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Mineral: | Beryl (variety emerald), Albite (variety cleavelandite) |
Locality: | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 64x39x53mm, main xl=23mm |
Description: |
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Viewed: |
29990 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
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Posted: Mar 02, 2015 07:20 Post subject: Re: Collection of Fiebre Verde - Coscuez (#466) |
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Aesthetic specimen from Coscuez.
Matrix in white marble-like calcite which produces a glistening effect all over the specimen.
Translucent and dark gray calcite crystals accompany the grass green emeralds.
There is a beryl crystal of the same size on each side of the specimen.
Mineral: | Beryl (variety emerald), Calcite |
Locality: | Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 54x34x50mm, both xls=13mm |
Description: |
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Viewed: |
29918 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 54x34x50mm, both xls=13mm |
Description: |
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Viewed: |
29913 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 54x34x50mm, both xls=13mm |
Description: |
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Viewed: |
29962 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 54x34x50mm, both xls=13mm |
Description: |
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Viewed: |
29934 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 54x34x50mm, both xls=13mm |
Description: |
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Viewed: |
29923 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 54x34x50mm, both xls=13mm |
Description: |
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Viewed: |
29919 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 54x34x50mm, both xls=13mm |
Description: |
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Viewed: |
29939 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 54x34x50mm, both xls=13mm |
Description: |
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Viewed: |
29916 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 54x34x50mm, both xls=13mm |
Description: |
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Viewed: |
29906 Time(s) |
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Mineral: | Beryl (variety emerald), Calcite |
Locality: | Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia | |
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Dimensions: | 54x34x50mm, both xls=13mm |
Description: |
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Viewed: |
29929 Time(s) |
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