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Edward Epp's Photo Gallery

20D-VTUGalena, Pyrite

Cofer prospect, Gold-Pyrite Belt, Louisa Co., Virginia, USA

Dimensions: 4.5 cm x 7.5 cm x 3 cm
Largest Crystal Size: 4 mm

This piece of volcanogenic massive sulfide was self-collected in 2008 before the property was reclaimed. I believe it is what the miners called "black ore" for the relative abundance of galena and darker minerals, versus pyrite. I suspect that sphalerite, pyrrhotite, and other minerals are also represented in this specimen.
Photo ID: 939698     Uploaded by: Edward Epp   View Count: 13   Approval status: Public galleries    Type: Photo - 3456 x 4608 pixels (15.9 Mpix)

05Q-56NGalena, Pyrite

Cofer prospect, Gold-Pyrite Belt, Louisa Co., Virginia, USA

Dimensions: 4 cm x 5 cm x 1 cm
Largest Crystal Size: 5 mm

I collected this piece of volcanogenic massive sulfide in the summer of 2008 or 2009, before the property was reclaimed. I believe this is what the miners called "yellow ore" due to the enrichment of pyrite material. Pyrite and galena are easily identifiable, though I suspect this piece also contains pyrrhotite, sphalerite, quartz, and others. I would love to cut and polish a thin section from the unpolished portion of the specimen to get a better handle on the complex mineralogy.
Photo ID: 939693     Uploaded by: Edward Epp   View Count: 11   Approval status: Public galleries    Type: Photo - 4608 x 3456 pixels (15.9 Mpix)

3E7-DFLTremolite, Pyrite

Sulphur Mine, Mineral, Gold-Pyrite Belt, Louisa Co., Virginia, USA

Dimensions: 13 cm x 9 cm x 3 cm
Largest Crystal Size: 2 cm

I collected this specimen in the summer of 2007 or 2008 from the ridge above the south bank of Contrary Creek. Dark minerals are probably tremolite, based on descriptions of other photos from this locality. I haven't done any detailed identification of them, however. Pyrite is sprinkled through the specimen, and I think that the green/white interstitial material is sericite mica.
Photo ID: 939678     Uploaded by: Edward Epp   View Count: 14   Approval status: Public galleries    Type: Photo - 4608 x 3456 pixels (15.9 Mpix)
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