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RM2839   Pyrite, sphalerite and crandallite

Quiruvilca Mine, Quiruvilca, Santiago de Chuco, La Libertad, Perú

Group of octahedral pyrite crystals, very brilliant and well defined, which are accompanied by complex crystals of sphalerite. On them we observed numerous white globular crandallite aggregates (analyzed by XRD). This combination of minerals is unusual in the deposit, with this phosphate being the first citation.

Size: 8.4 x 6.9 x 5 cm.
Main crystal: 18 mm. py