Mineral: Marcasite
Locality: Bou Nahas Mine, Oumjrane mining area, Alnif Commune, Tinghir Province, Drâa-Tafilalet Region, Morocco
Dimensions: 1.5 x 10.5 cm

Description: Curved stalactite of brassy marcasite crystals, some of which display a subtle iridescence. Collected in July 2014.

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