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Calaverite-Fluorite-273367
 

 

 

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Source page: http://commons.wikimedia.org/wiki/File:Calaverite-Fluorite-273367.jpg

Summary

Description
English: Calaverite, Fluorite
Locality: Cresson Mine, Eclipse Gulch, Cripple Creek District, Teller County, Colorado, USA (Locality at mindat.org)
Size: 4.3 x 3.7 x 3.2 cm.
The Cripple Creek District in Colorado was one of the most prolific Telluride producing mining districts in the United States. Telluride species from this area are highly sought after by collectors, and it is well justified as some superb examples are known from the various mines in the area. This specimen hosts a few small, excellent quality sharp, lustrous, tabular, striated, monoclinic crystals of the rare Gold Telluride, Calaverite which have a bronzy hue. The crystals have a classic association (for this mine) of purple Fluorite and are sitting against grey Quartz matrix on matrix. The largest Calaverite crystal measures a few mm in length which is typical for the species and the locality, but an association with purple Fluorite is not typical. These specimens are very difficult to obtain, and considering that the majority of them were mined over 100 years ago, the only source for specimens is old collections. Ex. Richard Kosnar Collection.
Deutsch: Calaverit, Fluorit
Fundort: Cresson Mine, Eclipse Gulch, Cripple Creek District, Teller County, Colorado, Vereinigte Staaten (Fundort bei mindat.org)
Größe: 4.3 x 3.7 x 3.2 cm.
Date before March 2010(2010-03)
Source http://www.mindat.org/photo-273367.html
Author
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Attribution: Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
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