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Collection of Fiebre Verde
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Fiebre Verde




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PostPosted: Feb 16, 2015 07:21    Post subject: Re: Collection of Fiebre Verde - Chivor (#367)  

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.



IMG_2820b.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 140x110x43mm
 Description:
 Viewed:  15897 Time(s)

IMG_2820b.JPG



IMG_2832b.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 140x110x43mm
 Description:
 Viewed:  15869 Time(s)

IMG_2832b.JPG



IMG_2840b.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 140x110x43mm
 Description:
 Viewed:  15885 Time(s)

IMG_2840b.JPG


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Fiebre Verde




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PostPosted: Feb 18, 2015 05:40    Post subject: Re: Collection of Fiebre Verde - La Pita (#533)  

Nice little aggregate of emeralds.


IMG_2472nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 54x36x60mm, xl=8mm
 Description:
 Viewed:  15813 Time(s)

IMG_2472nb.JPG



IMG_2486nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 54x36x60mm, xl=8mm
 Description:
 Viewed:  15829 Time(s)

IMG_2486nb.JPG



IMG_2500nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 54x36x60mm, xl=8mm
 Description:
 Viewed:  15829 Time(s)

IMG_2500nb.JPG



IMG_2516nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 54x36x60mm, xl=8mm
 Description:
 Viewed:  15815 Time(s)

IMG_2516nb.JPG



IMG_2530nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 54x36x60mm, xl=8mm
 Description:
 Viewed:  15823 Time(s)

IMG_2530nb.JPG



IMG_2524nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 54x36x60mm, xl=8mm
 Description:
 Viewed:  15831 Time(s)

IMG_2524nb.JPG


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Tobi




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PostPosted: Feb 18, 2015 10:39    Post subject: Re: Collection of Fiebre Verde  

GORGEOUS!!!
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Fiebre Verde




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PostPosted: Feb 18, 2015 10:55    Post subject: Re: Collection of Fiebre Verde  

Thanks Tobi!
For sure Colombia is a good source of fine beryls...
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Fiebre Verde




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PostPosted: Feb 19, 2015 09:30    Post subject: Re: Collection of Fiebre Verde - Muzo (#129)  

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.



IMG_3009nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 60x47x49mm, central xl=16mm
 Description:
 Viewed:  15669 Time(s)

IMG_3009nb.JPG



IMG_2851nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 60x47x49mm, central xl=16mm
 Description:
 Viewed:  15655 Time(s)

IMG_2851nb.JPG



IMG_2860nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 60x47x49mm, central xl=16mm
 Description:
 Viewed:  15638 Time(s)

IMG_2860nb.JPG



IMG_2914nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 60x47x49mm, central xl=16mm
 Description:
 Viewed:  15639 Time(s)

IMG_2914nb.JPG



IMG_2906nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 60x47x49mm, central xl=16mm
 Description:
 Viewed:  15651 Time(s)

IMG_2906nb.JPG



IMG_2896nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 60x47x49mm, central xl=16mm
 Description:
 Viewed:  15648 Time(s)

IMG_2896nb.JPG



IMG_2953nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 60x47x49mm, central xl=16mm
 Description:
 Viewed:  15625 Time(s)

IMG_2953nb.JPG



IMG_2937nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 60x47x49mm, central xl=16mm
 Description:
 Viewed:  15659 Time(s)

IMG_2937nb.JPG



IMG_2963nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 60x47x49mm, central xl=16mm
 Description:
 Viewed:  15637 Time(s)

IMG_2963nb.JPG


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Fiebre Verde




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PostPosted: Feb 20, 2015 15:57    Post subject: Re: Collection of Fiebre Verde - La Pita/Polveros (#78)  

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.



IMG_3118nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
La Pita mining district, Polveros Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 110x85x85mm, xl=30mm
 Description:
 Viewed:  15557 Time(s)

IMG_3118nb.JPG



IMG_3090nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
La Pita mining district, Polveros Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 110x85x85mm, xl=30mm
 Description:
 Viewed:  15590 Time(s)

IMG_3090nb.JPG



IMG_3033nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
La Pita mining district, Polveros Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 110x85x85mm, xl=30mm
 Description:
 Viewed:  15557 Time(s)

IMG_3033nb.JPG



IMG_3062nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
La Pita mining district, Polveros Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 110x85x85mm, xl=30mm
 Description:
 Viewed:  15564 Time(s)

IMG_3062nb.JPG



IMG_3115nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
La Pita mining district, Polveros Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 110x85x85mm, xl=30mm
 Description:
 Viewed:  15558 Time(s)

IMG_3115nb.JPG



IMG_3080nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
La Pita mining district, Polveros Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 110x85x85mm, xl=30mm
 Description:
 Viewed:  15548 Time(s)

IMG_3080nb.JPG



IMG_3101nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
La Pita mining district, Polveros Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 110x85x85mm, xl=30mm
 Description:
 Viewed:  15567 Time(s)

IMG_3101nb.JPG



IMG_3110nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
La Pita mining district, Polveros Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 110x85x85mm, xl=30mm
 Description:
 Viewed:  15572 Time(s)

IMG_3110nb.JPG



IMG_3099nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
La Pita mining district, Polveros Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 110x85x85mm, xl=30mm
 Description:
 Viewed:  15562 Time(s)

IMG_3099nb.JPG


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Fiebre Verde




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PostPosted: Feb 21, 2015 07:46    Post subject: Re: Collection of Fiebre Verde - Broken crystal from La Pita (#173)  

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.



IMG_3132nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 60x55x80mm, xl=6+8mm
 Description:
 Viewed:  15505 Time(s)

IMG_3132nb.JPG



IMG_3138nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 60x55x80mm, xl=6+8mm
 Description:
 Viewed:  15520 Time(s)

IMG_3138nb.JPG



IMG_3179nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 60x55x80mm, xl=6+8mm
 Description:
 Viewed:  15518 Time(s)

IMG_3179nb.JPG



IMG_3193nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 60x55x80mm, xl=6+8mm
 Description:
 Viewed:  15528 Time(s)

IMG_3193nb.JPG



IMG_3203nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 60x55x80mm, xl=6+8mm
 Description:
 Viewed:  15518 Time(s)

IMG_3203nb.JPG



IMG_3215nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 60x55x80mm, xl=6+8mm
 Description:
 Viewed:  15526 Time(s)

IMG_3215nb.JPG



IMG_3175nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 60x55x80mm, xl=6+8mm
 Description:
 Viewed:  15539 Time(s)

IMG_3175nb.JPG



IMG_3230nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 60x55x80mm, xl=6+8mm
 Description:
 Viewed:  15523 Time(s)

IMG_3230nb.JPG


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Tobi




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PostPosted: Feb 21, 2015 12:09    Post subject: Re: Collection of Fiebre Verde  

For sure one of the most aesthetic "damaged" mineral specimens ever ;-)
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Fiebre Verde




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PostPosted: Feb 21, 2015 12:53    Post subject: Re: Collection of Fiebre Verde  

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




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PostPosted: Feb 22, 2015 11:15    Post subject: Re: Collection of Fiebre Verde - Muzo with quartz (#228)  

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).



IMG_3255nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite, Quartz
 Locality:
Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 105x65x60mm, xl=24mm
 Description:
 Viewed:  15423 Time(s)

IMG_3255nb.JPG



IMG_3301nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite, Quartz
 Locality:
Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 105x65x60mm, xl=24mm
 Description:
 Viewed:  15429 Time(s)

IMG_3301nb.JPG



IMG_3265nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite, Quartz
 Locality:
Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 105x65x60mm, xl=24mm
 Description:
 Viewed:  15426 Time(s)

IMG_3265nb.JPG



IMG_3333nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite, Quartz
 Locality:
Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia
 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.
 Viewed:  15437 Time(s)

IMG_3333nb.JPG


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Fiebre Verde




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PostPosted: Feb 22, 2015 18:34    Post subject: Re: Collection of Fiebre Verde - Chivor (#449)  

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).



IMG_3522nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite, Albite (variety cleavelandite)
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 70x46x34mm, main xl=18mm
 Description:
 Viewed:  15383 Time(s)

IMG_3522nb.JPG



IMG_3468nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite, Albite (variety cleavelandite)
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 70x46x34mm, main xl=18mm
 Description:
 Viewed:  15411 Time(s)

IMG_3468nb.JPG



IMG_3453nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite, Albite (variety cleavelandite)
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 70x46x34mm, main xl=18mm
 Description:
 Viewed:  15415 Time(s)

IMG_3453nb.JPG



IMG_3443nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite, Albite (variety cleavelandite)
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 70x46x34mm, main xl=18mm
 Description:
 Viewed:  15404 Time(s)

IMG_3443nb.JPG



IMG_3447nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite, Albite (variety cleavelandite)
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 70x46x34mm, main xl=18mm
 Description:
 Viewed:  15391 Time(s)

IMG_3447nb.JPG



IMG_3437nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite, Albite (variety cleavelandite)
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 70x46x34mm, main xl=18mm
 Description:
 Viewed:  15384 Time(s)

IMG_3437nb.JPG



IMG_3394nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite, Albite (variety cleavelandite)
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 70x46x34mm, main xl=18mm
 Description:
 Viewed:  15391 Time(s)

IMG_3394nb.JPG



IMG_3402nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite, Albite (variety cleavelandite)
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 70x46x34mm, main xl=18mm
 Description:
 Viewed:  15372 Time(s)

IMG_3402nb.JPG



IMG_3380nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite, Albite (variety cleavelandite)
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 70x46x34mm, main xl=18mm
 Description:
 Viewed:  15374 Time(s)

IMG_3380nb.JPG



IMG_3411nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite, Albite (variety cleavelandite)
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 70x46x34mm, main xl=18mm
 Description:
 Viewed:  15400 Time(s)

IMG_3411nb.JPG


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Fiebre Verde




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PostPosted: Feb 24, 2015 09:30    Post subject: Re: Collection of Fiebre Verde -Chivor (#171)  

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...



IMG_3530nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 102x36x87mm, xl=13mm
 Description:
 Viewed:  15305 Time(s)

IMG_3530nb.JPG



IMG_3537nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 102x36x87mm, xl=13mm
 Description:
 Viewed:  15310 Time(s)

IMG_3537nb.JPG



IMG_3542nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 102x36x87mm, xl=13mm
 Description:
 Viewed:  15300 Time(s)

IMG_3542nb.JPG



IMG_3575nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 102x36x87mm, xl=13mm
 Description:
 Viewed:  15303 Time(s)

IMG_3575nb.JPG



IMG_3568nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 102x36x87mm, xl=13mm
 Description:
 Viewed:  15297 Time(s)

IMG_3568nb.JPG



IMG_3623nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 102x36x87mm, xl=13mm
 Description:
 Viewed:  15298 Time(s)

IMG_3623nb.JPG



IMG_3605nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 102x36x87mm, xl=13mm
 Description:
 Viewed:  15305 Time(s)

IMG_3605nb.JPG



IMG_3626nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 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...?
 Viewed:  15281 Time(s)

IMG_3626nb.JPG


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PostPosted: Feb 26, 2015 08:35    Post subject: Re: Collection of Fiebre Verde - La Pita with parisite (#53)  

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.



IMG_3835nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Parisite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 8x8x8cm, H35mm, xl=8mm
 Description:
 Viewed:  15237 Time(s)

IMG_3835nb.JPG



IMG_3806nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Parisite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 8x8x8cm, H35mm, xl=8mm
 Description:
 Viewed:  15234 Time(s)

IMG_3806nb.JPG



IMG_3824nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Parisite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 8x8x8cm, H35mm, xl=8mm
 Description:
 Viewed:  15265 Time(s)

IMG_3824nb.JPG



IMG_3790nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Parisite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 8x8x8cm, H35mm, xl=8mm
 Description:
 Viewed:  15214 Time(s)

IMG_3790nb.JPG



IMG_3686nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Parisite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 8x8x8cm, H35mm, xl=8mm
 Description:
 Viewed:  15228 Time(s)

IMG_3686nb.JPG



IMG_3777nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Parisite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 8x8x8cm, H35mm, xl=8mm
 Description:
 Viewed:  15220 Time(s)

IMG_3777nb.JPG



IMG_3726nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Parisite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 8x8x8cm, H35mm, xl=8mm
 Description:
 Viewed:  15237 Time(s)

IMG_3726nb.JPG



IMG_3720nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Parisite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 8x8x8cm, H35mm, xl=8mm
 Description:
 Viewed:  15212 Time(s)

IMG_3720nb.JPG



IMG_3772nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Parisite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 8x8x8cm, H35mm, xl=8mm
 Description:
 Viewed:  15236 Time(s)

IMG_3772nb.JPG



IMG_3738nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Parisite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: Detail - H=5mm
 Description:
Parisite
 Viewed:  15216 Time(s)

IMG_3738nb.JPG



IMG_3750nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Parisite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: Detail - H=3mm
 Description:
Parisite
 Viewed:  15294 Time(s)

IMG_3750nb.JPG


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PostPosted: Feb 27, 2015 06:16    Post subject: Re: Collection of Fiebre Verde - Muzo (#55)  

Aesthetic specimen with calcite from Muzo.


IMG_3915nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 25x29mm, xl=23mm
 Description:
 Viewed:  15104 Time(s)

IMG_3915nb.JPG


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PostPosted: Feb 28, 2015 10:30    Post subject: Re: Collection of Fiebre Verde - Chivor (#83)  

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.



IMG_3973nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 172x100x100mm, xl=18mm
 Description:
 Viewed:  14965 Time(s)

IMG_3973nb.JPG



IMG_3978nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 172x100x100mm, xl=18mm
 Description:
 Viewed:  14978 Time(s)

IMG_3978nb.JPG



IMG_3984nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 172x100x100mm, xl=18mm
 Description:
 Viewed:  14990 Time(s)

IMG_3984nb.JPG


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Tobi




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PostPosted: Mar 01, 2015 04:46    Post subject: Re: Collection of Fiebre Verde  

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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PostPosted: Mar 01, 2015 05:49    Post subject: Re: Collection of Fiebre Verde  

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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PostPosted: Mar 01, 2015 09:50    Post subject: Re: Collection of Fiebre Verde - Muzo (#88)  

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."



IMG_3948nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 130x80x150mm, xl=53mm
 Description:
 Viewed:  14866 Time(s)

IMG_3948nb.JPG



IMG_3959nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 130x80x150mm, xl=53mm
 Description:
 Viewed:  14867 Time(s)

IMG_3959nb.JPG


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PostPosted: Mar 01, 2015 16:35    Post subject: Re: Collection of Fiebre Verde - Chivor (#345)  

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.



IMG_4319nb.JPG
 Mineral: Beryl (variety emerald), Albite (variety cleavelandite)
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 64x39x53mm, main xl=23mm
 Description:
 Viewed:  14842 Time(s)

IMG_4319nb.JPG



IMG_4345nb.JPG
 Mineral: Beryl (variety emerald), Albite (variety cleavelandite)
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 64x39x53mm, main xl=23mm
 Description:
 Viewed:  14833 Time(s)

IMG_4345nb.JPG



IMG_4342nb.JPG
 Mineral: Beryl (variety emerald), Albite (variety cleavelandite)
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 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.
 Viewed:  14843 Time(s)

IMG_4342nb.JPG



IMG_4360nb.JPG
 Mineral: Beryl (variety emerald), Albite (variety cleavelandite)
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 64x39x53mm, main xl=23mm
 Description:
Note the shape of the isolated crystal.
 Viewed:  14837 Time(s)

IMG_4360nb.JPG



IMG_4369nb.JPG
 Mineral: Beryl (variety emerald), Albite (variety cleavelandite)
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 64x39x53mm, main xl=23mm
 Description:
Aggregate or complex termination?
 Viewed:  14838 Time(s)

IMG_4369nb.JPG



IMG_4372nb.JPG
 Mineral: Beryl (variety emerald), Albite (variety cleavelandite)
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 64x39x53mm, main xl=23mm
 Description:
Complex termination most likely ...
 Viewed:  14835 Time(s)

IMG_4372nb.JPG



IMG_4381nb.JPG
 Mineral: Beryl (variety emerald), Albite (variety cleavelandite)
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 64x39x53mm, main xl=23mm
 Description:
Oxidized beryl
 Viewed:  14830 Time(s)

IMG_4381nb.JPG



IMG_4350nb.JPG
 Mineral: Beryl (variety emerald), Albite (variety cleavelandite)
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 64x39x53mm, main xl=23mm
 Description:
Oxidized beryl.
 Viewed:  14828 Time(s)

IMG_4350nb.JPG


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PostPosted: Mar 02, 2015 07:20    Post subject: Re: Collection of Fiebre Verde - Coscuez (#466)  

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.



IMG_4035nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 54x34x50mm, both xls=13mm
 Description:
 Viewed:  14769 Time(s)

IMG_4035nb.JPG



IMG_4110nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 54x34x50mm, both xls=13mm
 Description:
Opposite side
 Viewed:  14775 Time(s)

IMG_4110nb.JPG



IMG_4052nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 54x34x50mm, both xls=13mm
 Description:
 Viewed:  14795 Time(s)

IMG_4052nb.JPG



IMG_4210nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 54x34x50mm, both xls=13mm
 Description:
 Viewed:  14785 Time(s)

IMG_4210nb.JPG



IMG_4067nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 54x34x50mm, both xls=13mm
 Description:
 Viewed:  14779 Time(s)

IMG_4067nb.JPG



IMG_4081nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 54x34x50mm, both xls=13mm
 Description:
 Viewed:  14796 Time(s)

IMG_4081nb.JPG



IMG_4204nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 54x34x50mm, both xls=13mm
 Description:
 Viewed:  14777 Time(s)

IMG_4204nb.JPG



IMG_4182nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 54x34x50mm, both xls=13mm
 Description:
 Viewed:  14802 Time(s)

IMG_4182nb.JPG



IMG_4162nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 54x34x50mm, both xls=13mm
 Description:
 Viewed:  14779 Time(s)

IMG_4162nb.JPG



IMG_4175nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 54x34x50mm, both xls=13mm
 Description:
 Viewed:  14788 Time(s)

IMG_4175nb.JPG


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