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Pyroaurite (ex Rich Kosnar Collection)
- Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
- Thumbnail, 1.7 x 1.1 x 0.6 cm
- Start Time: 05/20/2010 6:45:00 pm (CDT)
- End Time: 05/27/2010 6:45:00 pm (CDT)
- Auction Closed
Item Description
Dozens of small (less than 1 mm), sharp, rich yellow color, trigonal crystals of Pyroaurite on matrix from the famous Sterling Mine in New Jersey. The species gets is name from the Greek for "fire" and "gold" in allusion to the golden-yellow color assumed on heating at relatively low temperatures. It is the Iron analogue of Desautelsite and may originate as an alteration product of Iowaite.