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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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31129 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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31077 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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31094 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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31025 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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30993 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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31048 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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31000 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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31025 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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31055 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 |
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Viewed: |
30879 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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30895 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: |
30837 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: |
30819 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: |
30851 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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30823 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: |
30795 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: |
30867 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: |
30838 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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30745 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: |
30778 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: |
30739 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: |
30754 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: |
30754 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: |
30731 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: |
30767 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: |
30750 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: |
30785 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: |
30679 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: |
30706 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: |
30697 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: |
30719 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: |
30688 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: |
30716 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: |
30724 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: |
30664 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: |
30554 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: |
30596 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: |
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: |
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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30620 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: |
30531 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: |
30544 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: |
30563 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: |
30552 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: |
30524 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: |
30527 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: |
30517 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: |
30492 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: |
30511 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: |
30496 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: |
30425 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: |
30404 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: |
30433 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: |
30451 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: |
30395 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: |
30398 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: |
30418 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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30385 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: |
30359 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: |
30298 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: |
30332 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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30317 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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30321 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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30334 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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30327 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: |
30273 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: |
30323 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: |
30302 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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30416 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: |
30275 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: |
30015 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: |
30083 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: |
30075 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: |
29942 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: |
29941 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: |
29924 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: |
29928 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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Viewed: |
29939 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: |
29903 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: |
29934 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: |
29955 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: |
29913 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: |
29929 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: |
29857 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: |
29851 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: |
29901 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: |
29873 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: |
29862 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: |
29857 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: |
29878 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: |
29854 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: |
29842 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: |
29868 Time(s) |
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