| 7idceis ((PYRITE)), Academy of Natual Sciences Phila., $10 MINIMUM BID, Cerro de Pasco, Pasco Province, Pasco Department, Peru, 5.5 x 4 x 2.2 cm, Miniature | |
 | Here is a specimen from the Academy of Natural Sciences Philadelphia. Here is a cluster of pyritahedral crystals of Pyrite. The Pyrite crystals partially coated with a black coating. There are two crystal forms of Pyrite on the specimen, two generations. ANSP #19731 |
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