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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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31191 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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31139 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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31157 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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31089 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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31057 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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31111 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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31064 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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31087 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 |
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31118 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: |
30941 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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30958 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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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: |
30882 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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30913 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: |
30886 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: |
30857 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: |
30929 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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30901 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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30808 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: |
30841 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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30802 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: |
30817 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: |
30794 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: |
30830 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: |
30812 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: |
30847 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: |
30742 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: |
30768 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: |
30759 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: |
30784 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: |
30750 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: |
30780 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: |
30786 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: |
30726 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: |
30616 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: |
30659 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: |
30678 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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30683 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: |
30593 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: |
30607 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: |
30625 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: |
30615 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: |
30586 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: |
30589 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: |
30580 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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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: |
30573 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: |
30558 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: |
30489 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: |
30467 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: |
30496 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: |
30514 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: |
30458 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: |
30461 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: |
30481 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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30448 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: |
30422 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: |
30361 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: |
30395 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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30379 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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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: | 8x8x8cm, H35mm, xl=8mm |
Description: |
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30397 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: |
30390 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: |
30337 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: |
30385 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: |
30365 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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30478 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: |
30337 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: |
30078 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: |
30146 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: |
30137 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: |
30004 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: |
30003 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: |
29988 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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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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30002 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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29966 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: |
29996 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: |
30018 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: |
29976 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: |
29991 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: |
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: |
29914 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: |
29963 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: |
29935 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: |
29924 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: |
29920 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: |
29940 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: |
29917 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: |
29907 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: |
29930 Time(s) |
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