Chalcopyrite CuFeS2 - 02.CB.10a (Strunz)(from Las Cenizas Mine, Cabildo, Chile)Chalcopyrite is a c
Chalcopyrite CuFeS2 - 02.CB.10a (Strunz)(from Las Cenizas Mine, Cabildo, Chile)Chalcopyrite is a cooper iron sulfide mineral that crystallizes in the tetragonal system and is the most important copper ore. This specimen has a brassy to golden yellow color. The big one is coated for this mineral in 95% of its surface, and the 2 little are crystals. These are from Las Cenizas Mines, ( from the old work of my ex’s father jaja) near to Cabildo, a town of my Country. -- source link
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