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Collection of Fiebre Verde
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franjungle




Joined: 05 Apr 2017
Posts: 133
Location: Medellín, Colombia.


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PostPosted: Nov 16, 2017 11:30    Post subject: Re: Collection of Fiebre Verde  

Hi Gérard.

Two last specimens posted really awesome, so beautiful.

Both superb crystals seem to be a modern buildings. Incredible…
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Fiebre Verde




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PostPosted: Nov 17, 2017 05:46    Post subject: Re: Collection of Fiebre Verde  

franjungle wrote:
Hi Gérard.

Two last specimens posted really awesome, so beautiful.

Both superb crystals seem to be a modern buildings. Incredible…

Hola Firmo!

Muchas gracias for your kind appreciation.
These ones were recently "found" in the Bogota market which is scarcer than ever.
This shortage is due to a low supply of cut stones which automatically leads to a scarcity of quality specimens on the market for the average buyer.

We need to organize a mine tour on my next visit!

Gérard
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Fiebre Verde




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PostPosted: Nov 24, 2017 13:06    Post subject: Re: Collection of Fiebre Verde - Coscuez (#675)  

Aggregate cemented by carbonaceous material.
Most crystals are partially coated with a film of carbonaceous material.



IMG_5296nb.JPG
 Mineral: Beryl (variety emerald), Pyrite
 Locality:
Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 37x25x29mm, xls up to 1cm
 Description:
 Viewed:  734 Time(s)

IMG_5296nb.JPG


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Fiebre Verde




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PostPosted: Dec 05, 2017 13:38    Post subject: Re: Collection of Fiebre Verde - Coscuez (#674)  

Aggregate of acicular pale-green emerald crystals, with traces of limonite.
This is a very unusual habit for Colombian emeralds.
It was sold to me by the dealer as from Gachalá but after some investigation it appeared that this specimen comes actually from a recent find in the area of San Pablo de Borbur.
When asked on the locality of a recent find, most of the Bogotá-based dealers either don't know or prefer to mislead the buyers by giving approximate or even false information.
This is often part of a long tradition of secrecy to keep the real locality undisclosed.



IMG_5234nb.JPG
 Mineral: Beryl (variety emerald)
 Locality:
Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 67x52x38mm
 Description:
 Viewed:  616 Time(s)

IMG_5234nb.JPG



IMG_5258nb.JPG
 Mineral: Beryl (variety emerald)
 Locality:
Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 67x52x38mm
 Description:
 Viewed:  616 Time(s)

IMG_5258nb.JPG


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Philippe Durand




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PostPosted: Dec 05, 2017 15:35    Post subject: Re: Collection of Fiebre Verde  

Very strange beryl - at first glance, I would have said gypsum from Australia. LOL

This forum is really a nice way to enlarge the mineralogical culture.

Thanks
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Fiebre Verde




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PostPosted: Dec 06, 2017 11:23    Post subject: Re: Collection of Fiebre Verde  

Hello Phlippe!

I was confused too when I saw this specimen.
Hexagonal shape can be sensed for some crystals through magnification.
Green crystalline gypsum is unknown in any of the Colombian deposits.

This forum is definitely a wealth of information and knowledge!

Gérard
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Fiebre Verde




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PostPosted: Dec 08, 2017 20:51    Post subject: Re: Collection of Fiebre Verde - Chivor (#676)  

Semi-transparent crystal from Chivor.


IMG_5332nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Dolomite, Pyrite
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 20x27x20mm, xl=20mm
 Description:
 Viewed:  451 Time(s)

IMG_5332nb.JPG


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Don Lum




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PostPosted: Dec 08, 2017 21:13    Post subject: Re: Collection of Fiebre Verde - Chivor (#676)  

Fiebre Verde wrote:
Semi-transparent crystal from Chivor.


BRAVO Gerard !!!

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crosstimber
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Joined: 30 Apr 2008
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PostPosted: Dec 09, 2017 09:50    Post subject: Re: Collection of Fiebre Verde - Chivor (#676)  

Fiebre Verde wrote:
Semi-transparent crystal from Chivor.


Perfect. Beautiful combination.
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Fiebre Verde




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PostPosted: Dec 09, 2017 10:07    Post subject: Re: Collection of Fiebre Verde - Chivor (#676)  

Don Lum wrote:
Fiebre Verde wrote:
Semi-transparent crystal from Chivor.


BRAVO Gerard !!!

Thank you Don!
Seems like mother nature has it right.
Gérard
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Fiebre Verde




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PostPosted: Dec 09, 2017 10:34    Post subject: Re: Collection of Fiebre Verde - Chivor (#676)  

crosstimber wrote:
Fiebre Verde wrote:
Semi-transparent crystal from Chivor.


Perfect. Beautiful combination.

Thanks Michael!
Chivor has often wider and more attractive combinations than Muzo, Coscuez, or La Pita.
Gérard
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Fiebre Verde




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PostPosted: Dec 12, 2017 13:16    Post subject: Re: Collection of Fiebre Verde - Coscuez (#667)  

The oxidized calcite adds an unusual touch to the traditional color palette of the Colombian specimens.


IMG_5367nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 49x36x45mm, xl=8mm
 Description:
 Viewed:  166 Time(s)

IMG_5367nb.JPG



IMG_5427nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 49x36x45mm, xl=8mm
 Description:
 Viewed:  166 Time(s)

IMG_5427nb.JPG



IMG_5411nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 49x36x45mm, xl=8mm
 Description:
 Viewed:  167 Time(s)

IMG_5411nb.JPG


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Fiebre Verde




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PostPosted: Dec 16, 2017 17:52    Post subject: Re: Collection of Fiebre Verde - Chivor (#670)  

Acicular beryl crystals on translucent, milky white dolomite with a silky pearlescent luster.
Host rock is a crumbly limestone shale scattered with pyrite.



IMG_5580nb.JPG
 Mineral: Beryl (variety emerald), Dolomite, Pyrite
 Locality:
Chivor mining district, Piedra de Chulo Mine, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 49x61x33mm, xls=6mm & 7mm
 Description:
 Viewed:  59 Time(s)

IMG_5580nb.JPG



IMG_5608nb.JPG
 Mineral: Beryl (variety emerald), Dolomite, Pyrite
 Locality:
Chivor mining district, Piedra de Chulo Mine, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 49x61x33mm, xls=6mm & 7mm
 Description:
 Viewed:  57 Time(s)

IMG_5608nb.JPG



IMG_5597nb.JPG
 Mineral: Beryl (variety emerald), Dolomite, Pyrite
 Locality:
Chivor mining district, Piedra de Chulo Mine, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 49x61x33mm, xls=6mm & 7mm
 Description:
 Viewed:  60 Time(s)

IMG_5597nb.JPG


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