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Mineral

Oxy-chromium-dravite

oxy-chromium-dravite

NaCr₃(Cr₄Mg₂)(Si₆O₁₈)(BO₃)₃(OH)₃OFórmula química
sistema cristalino trigonalSistema cristalino
7,5Dureza (Mohs)
Pereval marble quarryLocalidade-tipo