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Bournonite - Viboras mine, Machacamarca District, Bolivia (#:MINS8080)

Nice Bournonite xls in twin formation 2,4 cm wide.

Formula :
Mg[AsO3(OH)] * 4 H2O

System: orthorhombic Hardness:2.28 Rarity:rare
Strunz id:VII/C.15-10 - PHOSPHATES, ARSENATES and VANADATES
Name origin: Honoring R`ejane Brasse, who first synthesized the compound.

Specimen weight:12 gr.
Crystal size:2,4 cm wide
Overall size: 24mm x 22 mm x 10 mm

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Bournonite - Viboras mine, Machacamarca District, Bolivia

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