Formula : Bi23+Cu32+[O/OH/PO4]2 * 2 H2O
System: monoclinic Hardness:2-3 Rarity:very rare
Strunz id:VII/D.53-100 -
PHOSPHATES, ARSENATES and VANADATES
Name origin: Named by T. Rídkoil, V. rein, J. Fábry, J. Hybler, and B.A. Maximov in 1992 in honor of Zdeněk Mrázek (15 February 1952 - 15 April 1984), a Czech mineralogist who first collected the species and suspected it was new.
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