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Pyroxmangite - Molinello mine - Graveglia Valley - Ligury - Italy (#:MINS8959)

Specimen rich of Pyroxmangite xls up to 2 mm set on matrix. A rare manganese specie.

Formula :
(Mn2+,Fe2+)7[Si7O21]
System: triclinic Hardness:5½-6 Rarity:rare
Strunz id:VIII/F.31-20 - SILICATES
Name origin: Named in 1913 by William E. Ford and W. M. Bradley from PYROXene and MANGanese, in allusion to its structure and content of Manganese.

Specimen weight:50 gr.
Crystal size:Up to 2 mm
Overall size: 57mm x 45 mm x 20 mm

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Pyroxmangite - Molinello mine - Graveglia Valley - Ligury - Italy

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