  Pyroxmangite.
Description from the source:
Pyroxmangite (Mn+2 Si O3 tric. ), Conselheiro Lafaiete, Minas Gerais, Brazil. Massive, cleavaged. 8,5x4,5x1,5 cm; 70 g.
Source: Simone Citon
Contributor: John Gray
Acquired: 30 September, 2008
Text Updated: 1 October, 2008
Price: Trade
Size: 3.3"
Composition: MnSiO3
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