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Fiebre Verde
Joined: 11 Sep 2013
Posts: 845
Location: Paris Area
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 Posted: Jul 28, 2016 10:05 Post subject: Re: Collection of Fiebre Verde - Polveros (#592) |
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Clear yellow-light green beryl crystal.
Calcite crystals set in a limonized-brecciated matrix.
| 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: | 46x25x30mm, xl=7x7mm |
| Description: |
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11108 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: | 46x25x30mm, xl=7x7mm |
| Description: |
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| Viewed: |
11105 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: | 46x25x30mm, xl=7x7mm |
| Description: |
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| Viewed: |
11138 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 845
Location: Paris Area
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| Posted: Jul 30, 2016 05:16 Post subject: Re: Collection of Fiebre Verde - La Pita (#601) |
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A classic specimen from La Pita.
Host rock is black shale.
| Mineral: | Beryl (variety emerald), Calcite, Dolomite |
| Locality: | | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 53x38x34mm, xl=5x4mm |
| Description: |
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| Viewed: |
11036 Time(s) |
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| Mineral: | Beryl (variety emerald), Calcite, Dolomite |
| Locality: | | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 53x38x34mm, xl=5x4mm |
| Description: |
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| Viewed: |
11032 Time(s) |
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| Mineral: | Beryl (variety emerald), Calcite, Dolomite |
| Locality: | | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 53x38x34mm, xl=5x4mm |
| Description: |
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| Viewed: |
11022 Time(s) |
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| Mineral: | Beryl (variety emerald), Calcite, Dolomite |
| Locality: | | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 53x38x34mm, xl=5x4mm |
| Description: |
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| Viewed: |
11034 Time(s) |
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| Mineral: | Beryl (variety emerald), Calcite, Dolomite |
| Locality: | | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 53x38x34mm, xl=5x4mm |
| Description: |
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| Viewed: |
11050 Time(s) |
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| Mineral: | Beryl (variety emerald), Calcite, Dolomite |
| Locality: | | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 53x38x34mm, xl=5x4mm |
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| Viewed: |
11054 Time(s) |
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Philippe Durand
Joined: 10 May 2016
Posts: 426
Location: Sainte Adresse
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| Posted: Jul 30, 2016 14:30 Post subject: Re: Collection of Fiebre Verde |
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| I Like the way that you present your specimen, from a wide view to a more and more close view. Really nice to fully appreciate a piece
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 845
Location: Paris Area
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| Posted: Jul 30, 2016 16:20 Post subject: Re: Collection of Fiebre Verde |
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| Philippe Durand wrote: | | I Like the way that you present your specimen, from a wide view to a more and more close view. Really nice to fully appreciate a piece |
Thank you Philippe - I am glad to hear you appreciate this approach!
To id my specimens, I often take lots of shots from wide views to close-ups, exploring different lighting and using various angles.
And when reviewing the result, I find it's always a dilemma to choose just one picture that summarizes it all.
One of the beauty of this forum is that it gives the option to go beyond that one summary picture (Although I do realize that I sometimes abuse that freedom a little...)
Gérard
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 845
Location: Paris Area
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| Posted: Jul 31, 2016 13:50 Post subject: Re: Collection of Fiebre Verde - La Pita (#611) |
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Beryl crystals on a calcite matrix.
The smallest crystal (13mm) is flawless and transparent.
| Mineral: | Beryl (variety emerald), Calcite |
| Locality: | | La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 46x85x20mm, xls=26, 16 & 13mm |
| Description: |
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| Viewed: |
10927 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: | 46x85x20mm, xls=26, 16 & 13mm |
| Description: |
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| Viewed: |
10911 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: | 46x85x20mm, xls=26, 16 & 13mm |
| Description: |
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| Viewed: |
10919 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: | 46x85x20mm, xls=26, 16 & 13mm |
| Description: |
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| Viewed: |
10933 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: | 46x85x20mm, xls=26, 16 & 13mm |
| Description: |
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| Viewed: |
10927 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: | 46x85x20mm, xls=26, 16 & 13mm |
| Description: |
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| Viewed: |
10938 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 845
Location: Paris Area
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| Posted: Aug 03, 2016 07:54 Post subject: Re: Collection of Fiebre Verde - Chivor (#91) |
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There are sprays of acicular aragonite all over the specimen.
White and colorless calcite set in a brecciated matrix with patches of black shale and grey limestone.
| Mineral: | Beryl (variety emerald), Calcite, Aragonite |
| Locality: | | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 75x63x64mm, main xl=11x9mm |
| Description: |
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| Viewed: |
10817 Time(s) |
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| Mineral: | Beryl (variety emerald), Calcite, Aragonite |
| Locality: | | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 75x63x64mm, main xl=11x9mm |
| Description: |
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| Viewed: |
10836 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 845
Location: Paris Area
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| Posted: Aug 05, 2016 07:59 Post subject: Re: Collection of Fiebre Verde - Chivor (#503) |
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In Colombia, the different districts and localities are known to produce emeralds that differ significantly in color, tone, and clarity.
Even if some trends have been observed it’s difficult to apply a rigid locality (or area) classification scheme based on color features alone when presented with an emerald specimen (or even worse, a faceted stone!).
Muzo emeralds are supposedly saturated, slightly yellowish green whereas Chivor emeralds are less saturated and exhibit a slight bluish tinge. But the opposite also occurs.
Color classification is mainly driven by the jewelry industry (with the help and creativity of some labs) which often refers to the beauty of the Colombian faceted emerald using a questionable terminology to describe their color features.
Back to this Chivor specimen… Although the crystals exhibit a slight bluish tinge, they are far more saturated than the average saturation of the Muzo crystals.
San Gregorio is known for producing relatively small but highly saturated crystals.
Lustrous dolomite, pyrite, on a crumbly grey shale.
| Mineral: | Beryl (variety emerald), Dolomite, Pyrite |
| Locality: | | Chivor mining district, San Gregorio Mine, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 21x58x31mm, largest xl=13mm |
| Description: |
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| Viewed: |
10743 Time(s) |
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| Mineral: | Beryl (variety emerald), Dolomite, Pyrite |
| Locality: | | Chivor mining district, San Gregorio Mine, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 21x58x31mm, largest xl=13mm |
| Description: |
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| Viewed: |
10719 Time(s) |
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| Mineral: | Beryl (variety emerald), Dolomite, Pyrite |
| Locality: | | Chivor mining district, San Gregorio Mine, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 21x58x31mm, largest xl=13mm |
| Description: |
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| Viewed: |
10726 Time(s) |
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| Mineral: | Beryl (variety emerald), Dolomite, Pyrite |
| Locality: | | Chivor mining district, San Gregorio Mine, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 21x58x31mm, largest xl=13mm |
| Description: |
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| Viewed: |
10730 Time(s) |
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| Mineral: | Beryl (variety emerald), Dolomite, Pyrite |
| Locality: | | Chivor mining district, San Gregorio Mine, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 21x58x31mm, largest xl=13mm |
| Description: |
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| Viewed: |
10749 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 845
Location: Paris Area
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| Posted: Aug 06, 2016 09:04 Post subject: Re: Collection of Fiebre Verde - Coscuez (#566) |
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The beryl prism of this Coscuez specimen is partially coated with tiny calcite crystals.
Host rock is a coarse-grained black shale
| 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: | 59x20x60mm, xl=7x5mm |
| Description: |
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| Viewed: |
10671 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: | 59x20x60mm, xl=7x5mm |
| Description: |
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| Viewed: |
10681 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: | 59x20x60mm, xl=7x5mm |
| Description: |
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| Viewed: |
10661 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: | 59x20x60mm, xl=7x5mm |
| Description: |
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| Viewed: |
10667 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: | 59x20x60mm, xl=7x5mm |
| Description: |
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| Viewed: |
10678 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: | 59x20x60mm, xl=7x5mm |
| Description: |
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| Viewed: |
10663 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: | 59x20x60mm, xl=7x5mm |
| Description: |
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| Viewed: |
10710 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 845
Location: Paris Area
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| Posted: Aug 07, 2016 13:07 Post subject: Re: Collection of Fiebre Verde - Calceteros (#485) |
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Calceteros mine also known as “Calcetero” or “El Calcetero” is located almost halfway between the historic mining areas of Coscuez and Peñas Blancas.
The emerald deposits of Coscuez and Calceteros are situated in the lower cretaceous Paja rocks units formation whereas the Peñas Blancas deposits are hosted by the (younger) Rosa Blanca formation (also lower cretaceous).
Based on this geological formation criteria alone, it was decided to attach the Calceteros locality to the Coscuez district rather than to Peñas Blancas.
I only have a handful of specimens from Calceteros and they exhibit some common features.
E.g. Oxidized coarse-grained black shale, coarse-grained aggregates of albite, quartz.
Beryl crystals are grouped into aggregates of small (<1cm) light green prisms with either a yellowish or bluish tinge.
Terminations often exhibit pyramidal faces combined with the flat pinacoid face.
The secondary color here is clearly yellow.
It’s impossible to draw conclusions about patterns and characteristics of this not so well-known locality with just a handful of specimens.
These are just basic observations which need to be corroborated by additional evidence which would require many more samples from additional finds!
| Locality: | | Coscuez mining district, Calceteros Mine, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia | |
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| Description: |
| "El Calcetero" is located halfway between the historic mining areas of Coscuez and Peñas Blancas (From Yannick Branquet, 1999). |
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| Viewed: |
10632 Time(s) |
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| Mineral: | Beryl (variety emerald), Albite (variety cleavelandite), Quartz, Calcite |
| Locality: | | Coscuez mining district, Calceteros Mine, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 96x75x33mm, xls up to 10mm |
| Description: |
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| Viewed: |
10606 Time(s) |
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| Mineral: | Beryl (variety emerald), Albite (variety cleavelandite), Quartz, Calcite |
| Locality: | | Coscuez mining district, Calceteros Mine, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 96x75x33mm, xls up to 10mm |
| Description: |
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| Viewed: |
10619 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 845
Location: Paris Area
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| Posted: Aug 10, 2016 06:54 Post subject: Re: Collection of Fiebre Verde - Chivor (#378) |
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From a relatively recent find (2011) in the Chivor district.
Host rock is black shale.
| Mineral: | Beryl (variety emerald), Albite (variety cleavelandite), Pyrite |
| Locality: | | Chivor mining district, Palo Arañado Mine, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 38x35x18mm, largest xl=20mm |
| Description: |
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| Viewed: |
10530 Time(s) |
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| Mineral: | Beryl (variety emerald), Albite (variety cleavelandite), Pyrite |
| Locality: | | Chivor mining district, Palo Arañado Mine, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 38x35x18mm, largest xl=20mm |
| Description: |
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| Viewed: |
10513 Time(s) |
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| Mineral: | Beryl (variety emerald), Albite (variety cleavelandite), Pyrite |
| Locality: | | Chivor mining district, Palo Arañado Mine, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 38x35x18mm, largest xl=20mm |
| Description: |
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| Viewed: |
10522 Time(s) |
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| Mineral: | Beryl (variety emerald), Albite (variety cleavelandite), Pyrite |
| Locality: | | Chivor mining district, Palo Arañado Mine, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 38x35x18mm, largest xl=20mm |
| Description: |
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| Viewed: |
10527 Time(s) |
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Philippe Durand
Joined: 10 May 2016
Posts: 426
Location: Sainte Adresse
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| Posted: Aug 10, 2016 14:17 Post subject: Re: Collection of Fiebre Verde |
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| striking combination
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 845
Location: Paris Area
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| Posted: Aug 11, 2016 07:02 Post subject: Re: Collection of Fiebre Verde |
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| Philippe Durand wrote: | | striking combination |
Thanks for your appreciation Philippe.
Faceted Colombian emeralds have been praised for so long for their quality but nothing surpasses the beauty of the matrix specimens they come from.
In Colombia, the combination of various minerals and host rocks along with the beryl crystal(s) often produces the effect you stated. And this is even more true with the Chivor specimens.
Gérard
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Jamison Brizendine
Joined: 27 Feb 2014
Posts: 128
Location: Northeast Ohio
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| Posted: Aug 11, 2016 09:21 Post subject: Re: Collection of Fiebre Verde |
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This thread never ceases to amaze me!
I particularly like the specimen from the Calceteros Mine (IMG_5152nb.JPG) and the emerald in the calcite/quartz vein from Chivor (IMG_4149nb.JPG).
I also like the aragonite and calcite specimen from Chivor as well (IMG_4840nb.JPG). What a cool oddity...
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Tobi
Joined: 07 Apr 2009
Posts: 3133
Location: Good Old Germany
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| Posted: Aug 11, 2016 12:15 Post subject: Re: Collection of Fiebre Verde |
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| Philippe Durand wrote: | | striking combination |
I agree, that emerald/pyrite combination gets me every time :)
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 845
Location: Paris Area
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| Posted: Aug 12, 2016 05:07 Post subject: Re: Collection of Fiebre Verde |
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| Jamison Brizendine wrote: | This thread never ceases to amaze me!
I particularly like the specimen from the Calceteros Mine (IMG_5152nb.JPG) and the emerald in the calcite/quartz vein from Chivor (IMG_4149nb.JPG).
I also like the aragonite and calcite specimen from Chivor as well (IMG_4840nb.JPG). What a cool oddity... |
Well spotted Jamison.
Collectors, dealers and mineral lovers at large are often (too often?) exposed to classic specimens which can indeed be spectacular.
But there are many, many oddities out there, you just need to find them.
They are generally overlooked by the local stakeholders (mine owners, miners, brokers, dealers...). This situation can only be reversed through an educational process.
| Tobi wrote: | | Philippe Durand wrote: | | striking combination |
I agree, that emerald/pyrite combination gets me every time :) |
The emerald/crystallized pyrite combination is found virtually everywhere in the Colombian emerald districts (with the notable exception of Peñas Blancas where the weathering environment has altered the pyrite).
I find there are many more variations of this combination in the Chivor region than in any other Emerald district.
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 845
Location: Paris Area
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| Posted: Aug 13, 2016 02:14 Post subject: Re: Collection of Fiebre Verde - Muzo (#13) |
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Another oddity, from Muzo this time.
Parisite was named after J.J. Paris, a former manager of the Muzo mine, who found this rare carbonate mineral in 1835.
Host rock is black shale.
| Mineral: | Beryl (variety emerald), Dolomite, Parisite-(Ce) |
| Locality: | | Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 39x12x22mm, Parisite=5mm, largest Beryl=12mm |
| Description: |
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| Viewed: |
10286 Time(s) |
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| Mineral: | Beryl (variety emerald), Dolomite, Parisite-(Ce) |
| Locality: | | Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 39x12x22mm, Parisite=5mm, largest Beryl=12mm |
| Description: |
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| Viewed: |
10293 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 845
Location: Paris Area
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| Posted: Aug 17, 2016 10:23 Post subject: Re: Collection of Fiebre Verde - Coscuez (#612) |
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Beryl crystal intergrown with lustrous dolomite.
Host rock is black shale.
| Mineral: | Beryl (variety emerald), Calcite, Pyrite |
| Locality: | | Coscuez mining district, Calceteros Mine, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 29x45x27mm, xl=34mm |
| Description: |
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| Viewed: |
10181 Time(s) |
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| Mineral: | Beryl (variety emerald), Dolomite, Pyrite |
| Locality: | | Coscuez mining district, Calceteros Mine, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 29x45x27mm, xl=34mm |
| Description: |
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| Viewed: |
10159 Time(s) |
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| Mineral: | Beryl (variety emerald), Dolomite, Pyrite |
| Locality: | | Coscuez mining district, Calceteros Mine, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 29x45x27mm, xl=34mm |
| Description: |
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| Viewed: |
10182 Time(s) |
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 845
Location: Paris Area
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| Posted: Aug 19, 2016 10:22 Post subject: Re: Collection of Fiebre Verde - Chivor (#376) |
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Glowing crystal with a complex asymmetric pyramidal termination perched on an aggregate of snowy white coarse-grained albite.
| Mineral: | Beryl (variety emerald), Albite (variety cleavelandite), Pyrite |
| Locality: | | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 24x13x11mm, xl=6mm |
| Description: |
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| Viewed: |
10102 Time(s) |
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| Mineral: | Beryl (variety emerald), Albite (variety cleavelandite), Pyrite |
| Locality: | | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 24x13x11mm, xl=6mm |
| Description: |
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| Viewed: |
10099 Time(s) |
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| Mineral: | Beryl (variety emerald), Albite (variety cleavelandite), Pyrite |
| Locality: | | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 24x13x11mm, xl=6mm |
| Description: |
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| Viewed: |
10092 Time(s) |
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| Mineral: | Beryl (variety emerald), Albite (variety cleavelandite), Pyrite |
| Locality: | | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 24x13x11mm, xl=6mm |
| Description: |
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| Viewed: |
10088 Time(s) |
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| Mineral: | Beryl (variety emerald), Albite (variety cleavelandite), Pyrite |
| Locality: | | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 24x13x11mm, xl=6mm |
| Description: |
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| Viewed: |
10103 Time(s) |
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| Mineral: | Beryl (variety emerald), Albite (variety cleavelandite), Pyrite |
| Locality: | | Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia | |
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| Dimensions: | 24x13x11mm, xl=6mm |
| Description: |
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| Viewed: |
10099 Time(s) |
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Tobi
Joined: 07 Apr 2009
Posts: 3133
Location: Good Old Germany
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| Posted: Aug 19, 2016 11:30 Post subject: Re: Collection of Fiebre Verde - Chivor (#376) |
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| Fiebre Verde wrote: | | Glowing crystal with a complex asymmetric pyramidal termination perched on an aggregate of snowy white coarse-grained albite. |
Simply a PERFECT emerald crystal: Perfect gemminess, perfect termination, perfect position on the matrix! Ok, maybe not the most-desired dark green colour (according to a jeweler's point of view) ... but I guess no one among us mineral enthusiasts dares to criticize that stunning mineral specimen in any way ;-)
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Fiebre Verde
Joined: 11 Sep 2013
Posts: 845
Location: Paris Area
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| Posted: Aug 20, 2016 09:59 Post subject: Re: Collection of Fiebre Verde - Chivor (#376) |
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| Tobi wrote: | | Fiebre Verde wrote: | | Glowing crystal with a complex asymmetric pyramidal termination perched on an aggregate of snowy white coarse-grained albite. |
Simply a PERFECT emerald crystal: Perfect gemminess, perfect termination, perfect position on the matrix! Ok, maybe not the most-desired dark green colour (according to a jeweler's point of view) ... but I guess no one among us mineral enthusiasts dares to criticize that stunning mineral specimen in any way ;-) |
Thanks Tobi!
Color is indeed not saturated but it has that desirable bluish tinge which is more commonly seen in Chivor that in the other mining areas.of the western belt.
Also what makes that specimen special is the complex asymmetrical termination.
I know prices should not be discussed in this forum but the offer I got from a dealer in Bogota was a real bargain.
I think it was just overlooked mainly because of its size and lack of saturation.
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