Collection of Mark Fenoglio
334 specimens published from MyMinerals 1.0

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Arsenopyrite
No. 0088

Peru

Silver-gray tabular crystals (to 7 mm tall) with metallic luster and diamond-shaped cross-section in sprays atop coal-black sphalerite matrix; some twinning

Purchased in April 2001
 
2.7 x 2.2 x 1.4 cm (thumbnail)

 

 
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