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Collection of Fiebre Verde
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Fiebre Verde




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PostPosted: Feb 20, 2016 07:09    Post subject: Re: Collection of Fiebre Verde - N'Chwaning Rhodochrosite (#7008)  

From pink to burgundy red.
Compact aggregates of deep to very deep burgundy red scalenohedral crystals.
Metallic-bright, black manganite blades cover the manganite matrix.



IMG_5082nb.JPG
 Mineral: Rhodochrosite, Manganite
 Locality:
N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa
 Dimensions: 38x39x28mm
 Description:
 Viewed:  13865 Time(s)

IMG_5082nb.JPG



IMG_5047nb.JPG
 Mineral: Rhodochrosite, Manganite
 Locality:
N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa
 Dimensions: 38x39x28mm
 Description:
 Viewed:  13831 Time(s)

IMG_5047nb.JPG



IMG_5037nb.JPG
 Mineral: Rhodochrosite, Manganite
 Locality:
N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa
 Dimensions: 38x39x28mm
 Description:
 Viewed:  13848 Time(s)

IMG_5037nb.JPG



IMG_5034nb.JPG
 Mineral: Rhodochrosite, Manganite
 Locality:
N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa
 Dimensions: 38x39x28mm
 Description:
 Viewed:  13839 Time(s)

IMG_5034nb.JPG


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Fiebre Verde




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PostPosted: Feb 21, 2016 05:45    Post subject: Re: Collection of Fiebre Verde - N'Chwaning Rhodochrosite (#7012)  

... and back to pink!

Scalenohedral 'wheat-sheaf' rhodochrosite crystals arranged in spherical aggregates on a manganite matrix.
Crystals have pale pink cloudy centers and red gem clear tips.



IMG_5133nb.JPG
 Mineral: Rhodochrosite, Manganite
 Locality:
N'Chwaning I Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa
 Dimensions: 39x29x27mm
 Description:
 Viewed:  13771 Time(s)

IMG_5133nb.JPG



IMG_5127nb.JPG
 Mineral: Rhodochrosite, Manganite
 Locality:
N'Chwaning I Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa
 Dimensions: 39x29x27mm
 Description:
 Viewed:  13770 Time(s)

IMG_5127nb.JPG



IMG_5097nb.JPG
 Mineral: Rhodochrosite, Manganite
 Locality:
N'Chwaning I Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa
 Dimensions: 39x29x27mm
 Description:
 Viewed:  13767 Time(s)

IMG_5097nb.JPG



IMG_5180nb.JPG
 Mineral: Rhodochrosite, Manganite
 Locality:
N'Chwaning I Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa
 Dimensions: 39x29x27mm
 Description:
 Viewed:  13766 Time(s)

IMG_5180nb.JPG



IMG_5164nb.JPG
 Mineral: Rhodochrosite, Manganite
 Locality:
N'Chwaning I Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa
 Dimensions: 39x29x27mm
 Description:
 Viewed:  13746 Time(s)

IMG_5164nb.JPG



IMG_5156nb.JPG
 Mineral: Rhodochrosite, Manganite
 Locality:
N'Chwaning I Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa
 Dimensions: 39x29x27mm
 Description:
 Viewed:  13740 Time(s)

IMG_5156nb.JPG



IMG_5143nb.JPG
 Mineral: Rhodochrosite, Manganite
 Locality:
N'Chwaning I Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa
 Dimensions: 39x29x27mm
 Description:
 Viewed:  13766 Time(s)

IMG_5143nb.JPG


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Tobi




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PostPosted: Feb 21, 2016 09:19    Post subject: Re: Collection of Fiebre Verde  

Quite strange to see something not green in your thread ;-)
But the specimens and photos are good as well!

Tobi
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Fiebre Verde




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PostPosted: Feb 21, 2016 10:13    Post subject: Re: Collection of Fiebre Verde - Cunas (#483)  

Tobi wrote:
Quite strange to see something not green in your thread ;-)
But the specimens and photos are good as well!

Tobi


Thanks Tobi.
I spent time tidying and sorting out my inventory lately and I am afraid I have been sidetracked from my usual threads. But now am ready to get back to my favorite mineral/variety.
For a soft landing into the green, I thought I could start on a more geological note with a small (tiny) chunk of an emerald-bearing vein.
Emerald mineralization of Colombia occurs in carbonate-pyrite veins and breccia and this La Pita specimen is a good example of the in-situ conditions prevailing when mining the emeralds.
A few patches of black shale are visible.



IMG_5305nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite
 Locality:
La Pita mining district, Cunas Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 80x40x90mm - xls up to 8mm
 Description:
 Viewed:  13706 Time(s)

IMG_5305nb.JPG



IMG_5270nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite
 Locality:
La Pita mining district, Cunas Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 80x40x90mm - xls up to 8mm
 Description:
 Viewed:  13721 Time(s)

IMG_5270nb.JPG



IMG_5275nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite
 Locality:
La Pita mining district, Cunas Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 80x40x90mm - xls up to 8mm
 Description:
 Viewed:  13734 Time(s)

IMG_5275nb.JPG


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chris
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PostPosted: Feb 21, 2016 12:18    Post subject: Re: Collection of Fiebre Verde  

Hi,

Didn't know you had turned red lately. Great rhodo & always a pleasure to have a look at some beryls. Looking forward the other ones.

Christophe
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Fiebre Verde




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PostPosted: Feb 21, 2016 13:14    Post subject: Re: Collection of Fiebre Verde  

chris wrote:
Hi,

Didn't know you had turned red lately. Great rhodo & always a pleasure to have a look at some beryls. Looking forward the other ones.

Christophe


Merci Christophe!
Red has been on my radar for a while. But life circumstances have taken me to Colombia in the mid-90's hence the bias towards the green.
Gérard
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PostPosted: Feb 22, 2016 08:20    Post subject: Re: Collection of Fiebre Verde - Gachalá (#196)  

Another large cluster of intergrown crystals from the El Toro mine.
The orange-brown limonite cover makes the specimen look like if it was just recovered from the mine. And this is the reason why I had it inspected by several local dealers first.
The discovery of this pocket in 2008 had fueled the imagination of the local mineral craftsmen and at that time the demand had led to lot of fakes on the Bogota market.
This reached a point where some local dealers refused to take the risk of trading them.

Not sure how much of those 'high-risk' limonite covered specimens made it to the foreign market.
As far as I remember I haven't seen any of those specimens offered by internet dealers or at the main European shows (wasn't in Tucson).



IMG_5331nb.JPG
 Mineral: Beryl (variety emerald)
 Locality:
Gachalá mining district, El Toro Mine, Municipio Gachalá, Eastern Emerald Belt, Cundinamarca Department, Colombia
 Dimensions: 115x90x110mm
 Description:
 Viewed:  13664 Time(s)

IMG_5331nb.JPG


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Fiebre Verde




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PostPosted: Feb 23, 2016 11:33    Post subject: Re: Collection of Fiebre Verde - Chivor (#465)  

When present, rutile occurs as solid inclusions in the emeralds but is very rarely observed as an associated mineral.
A while back I posted some close-ups in a different thread to request some assistance on what could be that elongated crystal (4mm) with a bright metallic luster. The consensus was that it was very likely rutile.

Host rock is weathered black shale crosscut by a network of calcite veinlets



IMG_5406nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite, Rutile
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 65x74x63mm, main xl=40mm
 Description:
 Viewed:  13559 Time(s)

IMG_5406nb.JPG



IMG_5442nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite, Rutile
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 65x74x63mm, main xl=40mm
 Description:
 Viewed:  13572 Time(s)

IMG_5442nb.JPG



IMG_5365nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite, Rutile
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 65x74x63mm, main xl=40mm
 Description:
Rutile crystal is 4mm long.
 Viewed:  13583 Time(s)

IMG_5365nb.JPG


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Fiebre Verde




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PostPosted: Feb 24, 2016 17:12    Post subject: Re: Collection of Fiebre Verde - Panjshir (#159)  

Like those in Colombia, the Panjshir emeralds are formed through a hydrothermal process.
Host rock is a metamorphic schist that has been subjected to intense hydrothermal alteration.



IMG_5625nb.JPG
 Mineral: Beryl (variety emerald), Muscovite
 Locality:
Kamar Safed, Bazarak District, Panjsher Province, Afghanistan
 Dimensions: 110x95x35, xl=44mm
 Description:
 Viewed:  13534 Time(s)

IMG_5625nb.JPG



IMG_5652nb.JPG
 Mineral: Beryl (variety emerald), Muscovite
 Locality:
Kamar Safed, Bazarak District, Panjsher Province, Afghanistan
 Dimensions: 110x95x35, xl=44mm
 Description:
The whitish grain-shaped crystals in the foreground are very likely albite.
 Viewed:  13510 Time(s)

IMG_5652nb.JPG


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Fiebre Verde




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PostPosted: Feb 25, 2016 07:10    Post subject: Re: Collection of Fiebre Verde - La Pita (#169)  

La Pita specimen with large calcite crystals.
Host rock is black shale.



IMG_5488nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 140x75x80mm, xls=16 & 10mm
 Description:
 Viewed:  13465 Time(s)

IMG_5488nb.JPG



IMG_5547nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 140x75x80mm, xls=16 & 10mm
 Description:
 Viewed:  13479 Time(s)

IMG_5547nb.JPG



IMG_5505nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 140x75x80mm, xls=16 & 10mm
 Description:
 Viewed:  13460 Time(s)

IMG_5505nb.JPG



IMG_5519nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 140x75x80mm, xls=16 & 10mm
 Description:
 Viewed:  13463 Time(s)

IMG_5519nb.JPG



IMG_5552nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Pyrite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 140x75x80mm, xls=16 & 10mm
 Description:
xl=10mm
 Viewed:  13464 Time(s)

IMG_5552nb.JPG


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Fiebre Verde




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PostPosted: Feb 26, 2016 10:22    Post subject: Re: Collection of Fiebre Verde - Coscuez (#351)  

White lustrous calcite is never easy to photograph and this large specimen is no exception.
There are a couple of grey dolomite crystals scattered around.
Also some remnants of the black shale host rock can be observed in the back.



IMG_5666nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Dolomite
 Locality:
Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 90x90x80mm, xls=14 & 18mm
 Description:
 Viewed:  13390 Time(s)

IMG_5666nb.JPG



IMG_5751nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Dolomite
 Locality:
Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 90x90x80mm, xls=14 & 18mm
 Description:
 Viewed:  13381 Time(s)

IMG_5751nb.JPG



IMG_5760nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Dolomite
 Locality:
Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 90x90x80mm, xls=14 & 18mm
 Description:
 Viewed:  13384 Time(s)

IMG_5760nb.JPG



IMG_5697nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Dolomite
 Locality:
Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 90x90x80mm, xls=14 & 18mm
 Description:
 Viewed:  13395 Time(s)

IMG_5697nb.JPG


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Fiebre Verde




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PostPosted: Feb 27, 2016 17:48    Post subject: Re: Collection of Fiebre Verde - Uchucchacua (#7100)  

Peruvian red this time :-)

Compact aggregate of burgundy-red rhodochrosite scalenohedrons associated with colorless rounded fluorite and quartz on a goethite matrix.
Some of the rhodochrosite crystals have stepped faces which are poorly rendered in the last close-up images.



IMG_5843nb.JPG
 Mineral: Rhodochrosite, Fluorite, Quartz, Goethite
 Locality:
Uchucchacua Mine, Oyón Province, Lima Department, Peru
 Dimensions: 115x110x50mm
 Description:
 Viewed:  13322 Time(s)

IMG_5843nb.JPG



IMG_5858nb.JPG
 Mineral: Rhodochrosite, Fluorite, Quartz, Goethite
 Locality:
Uchucchacua Mine, Oyón Province, Lima Department, Peru
 Dimensions: 115x110x50mm
 Description:
 Viewed:  13308 Time(s)

IMG_5858nb.JPG



IMG_5841nb.JPG
 Mineral: Rhodochrosite, Fluorite, Quartz, Goethite
 Locality:
Uchucchacua Mine, Oyón Province, Lima Department, Peru
 Dimensions: 115x110x50mm
 Description:
 Viewed:  13301 Time(s)

IMG_5841nb.JPG



IMG_5837nb.JPG
 Mineral: Rhodochrosite, Fluorite, Quartz, Goethite
 Locality:
Uchucchacua Mine, Oyón Province, Lima Department, Peru
 Dimensions: 115x110x50mm
 Description:
 Viewed:  13312 Time(s)

IMG_5837nb.JPG



IMG_5824nb.JPG
 Mineral: Rhodochrosite, Fluorite, Quartz, Goethite
 Locality:
Uchucchacua Mine, Oyón Province, Lima Department, Peru
 Dimensions: 115x110x50mm
 Description:
 Viewed:  13308 Time(s)

IMG_5824nb.JPG



IMG_5821nb.JPG
 Mineral: Rhodochrosite, Fluorite, Quartz, Goethite
 Locality:
Uchucchacua Mine, Oyón Province, Lima Department, Peru
 Dimensions: 115x110x50mm
 Description:
 Viewed:  13314 Time(s)

IMG_5821nb.JPG



IMG_5815nb.JPG
 Mineral: Rhodochrosite, Fluorite, Quartz, Goethite
 Locality:
Uchucchacua Mine, Oyón Province, Lima Department, Peru
 Dimensions: 115x110x50mm
 Description:
 Viewed:  13323 Time(s)

IMG_5815nb.JPG


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Fiebre Verde




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PostPosted: Feb 29, 2016 10:21    Post subject: Re: Collection of Fiebre Verde - Cunas (#170)  

Back to Cunas, one of the most prolific Colombian emerald mines in the past 10 years.
Note the lustrous dark grey dolomite rhombs. The thin long emerald crystal (20mm) is doubly-terminated.
Host rock is black shale.
Snow-white acicular sprays of an unknown mineral are visible in the last close-up image.



IMG_6064nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Dolomite, Pyrite
 Locality:
La Pita mining district, Cunas Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 60x57x28mm, xls=20mm & 16mm
 Description:
 Viewed:  13205 Time(s)

IMG_6064nb.JPG



IMG_5994nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Dolomite, Pyrite
 Locality:
La Pita mining district, Cunas Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 60x57x28mm, xls=20mm & 16mm
 Description:
 Viewed:  13214 Time(s)

IMG_5994nb.JPG



IMG_5897nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Dolomite, Pyrite
 Locality:
La Pita mining district, Cunas Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 60x57x28mm, xls=20mm & 16mm
 Description:
 Viewed:  13184 Time(s)

IMG_5897nb.JPG



IMG_5909nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Dolomite, Pyrite
 Locality:
La Pita mining district, Cunas Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 60x57x28mm, xls=20mm & 16mm
 Description:
 Viewed:  13194 Time(s)

IMG_5909nb.JPG



IMG_5871nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Dolomite, Pyrite
 Locality:
La Pita mining district, Cunas Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 60x57x28mm, xls=20mm & 16mm
 Description:
 Viewed:  13223 Time(s)

IMG_5871nb.JPG



IMG_5957nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Dolomite, Pyrite
 Locality:
La Pita mining district, Cunas Mine, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 60x57x28mm, xls=20mm & 16mm
 Description:
Note the small snow-white acicular sprays on the bottom part. Aragonite?
 Viewed:  13198 Time(s)

IMG_5957nb.JPG


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Fiebre Verde




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PostPosted: Mar 01, 2016 10:50    Post subject: Re: Collection of Fiebre Verde - Coscuez (#75)  

A rarity from Coscuez because of the... calcite!
Tabular calcite is not common and I have only seen this crystal habit in the Western Belt - mainly in Coscuez.

Calcite is dusted with what looks like whitish goethite.
This specimen is from the early 00's. Host rock is black shale.



IMG_6102nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Dolomite, Pyrite
 Locality:
Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 113x98x85mm, main xl=15mm
 Description:
 Viewed:  13135 Time(s)

IMG_6102nb.JPG



IMG_6107nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Dolomite, Pyrite
 Locality:
Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 113x98x85mm, main xl=15mm
 Description:
 Viewed:  13117 Time(s)

IMG_6107nb.JPG



IMG_6117nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Dolomite, Pyrite
 Locality:
Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 113x98x85mm, main xl=15mm
 Description:
 Viewed:  13119 Time(s)

IMG_6117nb.JPG



IMG_6184nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Dolomite, Pyrite
 Locality:
Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 113x98x85mm, main xl=15mm
 Description:
Lustrous opalescent dolomite in the foreground.
 Viewed:  13142 Time(s)

IMG_6184nb.JPG



IMG_6277nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Dolomite, Pyrite
 Locality:
Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 113x98x85mm, main xl=15mm
 Description:
 Viewed:  13124 Time(s)

IMG_6277nb.JPG



IMG_6140nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Dolomite, Pyrite
 Locality:
Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 113x98x85mm, main xl=15mm
 Description:
Note how one of the emeralds is solidly anchored to the large tabular calcite crystal.
 Viewed:  13128 Time(s)

IMG_6140nb.JPG



IMG_6231nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Dolomite, Pyrite
 Locality:
Coscuez mining district, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 113x98x85mm, main xl=15mm
 Description:
 Viewed:  13142 Time(s)

IMG_6231nb.JPG


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Fiebre Verde




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PostPosted: Mar 02, 2016 09:21    Post subject: Re: Collection of Fiebre Verde - Chivor (#275)  

Another matrix specimen with no associated minerals other than elongated beryl crystals.
And another illustration of the incredible variety of specimens from the Chivor district, as opposed to Muzo, Coscuez, or La Pita.
The shorter crystal is fractured which suggests that it grew first.
Host rock is a weathered black shale.



IMG_6332nb.JPG
 Mineral: Beryl (variety emerald)
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 46x78x24mm, longest xl=31mm
 Description:
 Viewed:  13034 Time(s)

IMG_6332nb.JPG



IMG_6314nb.JPG
 Mineral: Beryl (variety emerald)
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 46x78x24mm, longest xl=31mm
 Description:
 Viewed:  13033 Time(s)

IMG_6314nb.JPG



IMG_6302nb.JPG
 Mineral: Beryl (Var. Emerald)
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 46x78x24mm, longest xl=31mm
 Description:
 Viewed:  13057 Time(s)

IMG_6302nb.JPG


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Jamison Brizendine




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PostPosted: Mar 02, 2016 10:33    Post subject: Re: Collection of Fiebre Verde  

Gérard that is a very neat “bent” emerald!

I also like the cluster of emerald crystals and calcite from the La Pita mining district (IMG_6064nb). Very pretty!
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Fiebre Verde




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PostPosted: Mar 02, 2016 17:27    Post subject: Re: Collection of Fiebre Verde  

Jamison Brizendine wrote:
Gérard that is a very neat “bent” emerald!

I also like the cluster of emerald crystals and calcite from the La Pita mining district (IMG_6064nb). Very pretty!


Thanks for your comments Jamison.
At first I thought of 2 crystals overlaying each other with a certain angle which would create an optical illusion of a bent emerald.
The main crystal (in background) is actually contacted in 2 separate places by the "bent emerald". The section with 2 "overlaid" crystals runs for about 1/3 of the total length. The remaining 2/3 is actually one single crystal which is indeed bent.
Gérard



IMG_6453nb.JPG
 Mineral: Beryl (variety emerald)
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 46x78x24mm, longest xl=31mm
 Description:
 Viewed:  12978 Time(s)

IMG_6453nb.JPG


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Fiebre Verde




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PostPosted: Mar 03, 2016 14:46    Post subject: Re: Collection of Fiebre Verde - Chivor (#68)  

Another aesthetic Chivor specimen, quite different from the previous one.
The contrast between the group of parallel emerald prisms and the black lustrous dolomite wrapping is much nicer than the photos show.
Note the dipping termination.
Host rock is black shale.



IMG_6542nb.JPG
 Mineral: Beryl (variety emerald), Albite (variety cleavelandite), Dolomite
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 80x39x33mm, aggregate=35x16mm
 Description:
 Viewed:  12924 Time(s)

IMG_6542nb.JPG



IMG_6569nb.JPG
 Mineral: Beryl (variety emerald), Albite (variety cleavelandite), Dolomite
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 80x39x33mm, aggregate=35x16mm
 Description:
 Viewed:  12946 Time(s)

IMG_6569nb.JPG



IMG_6582nb.JPG
 Mineral: Beryl (variety emerald), Albite (variety cleavelandite), Dolomite
 Locality:
Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department, Colombia
 Dimensions: 80x39x33mm, aggregate=35x16mm
 Description:
 Viewed:  12932 Time(s)

IMG_6582nb.JPG


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Fiebre Verde




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PostPosted: Mar 04, 2016 12:57    Post subject: Re: Collection of Fiebre Verde - La Pita (#114)  

One side is emerald and the opposite side is mainly lustrous dolomite.
Host rock is black shale.



IMG_6489nb.JPG
 Mineral: Beryl (Var. Emerald), Calcite, Dolomite, Pyrite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 98x83x35mm, longest xl=20mm
 Description:
That's the dolomite side.
 Viewed:  12882 Time(s)

IMG_6489nb.JPG



IMG_6357nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Dolomite, Pyrite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 98x83x35mm, longest xl=20mm
 Description:
Opposite side with the emeralds, calcite, dolomite and pyrite.
 Viewed:  12902 Time(s)

IMG_6357nb.JPG



IMG_6506nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Dolomite, Pyrite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 98x83x35mm, longest xl=20mm
 Description:
 Viewed:  12887 Time(s)

IMG_6506nb.JPG



IMG_6425nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Dolomite, Pyrite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 98x83x35mm, longest xl=20mm
 Description:
 Viewed:  12885 Time(s)

IMG_6425nb.JPG



IMG_6418nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Dolomite, Pyrite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 98x83x35mm, longest xl=20mm
 Description:
 Viewed:  12881 Time(s)

IMG_6418nb.JPG



IMG_6440nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Dolomite, Pyrite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 98x83x35mm, longest xl=20mm
 Description:
 Viewed:  12888 Time(s)

IMG_6440nb.JPG



IMG_6397nb.JPG
 Mineral: Beryl (variety emerald), Calcite, Dolomite, Pyrite
 Locality:
La Pita mining district, Municipio Maripí, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: 98x83x35mm, longest xl=20mm
 Description:
 Viewed:  12929 Time(s)

IMG_6397nb.JPG


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Tobi




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PostPosted: Mar 05, 2016 02:48    Post subject: Re: Collection of Fiebre Verde  

Very nice that combination of emerald and a nearly gold-coloured pyrite!
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