Mineral: Pyrite
Locality: Rio Mine (Rio Marina Mine), Valle Giove stope, Rio Marina, Elba Island, Livorno Province, Tuscany, Italy
Dimensions: 32 x 23 cm

Description: Huge group, intact and complete all around, of pyritohedra up to over 10 cm. Some of them show iron cross twinning. Identetions and iron oxides spots on the crystal faces testify the total dissolution of Hematite.

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