Ferrovalleriite

Availability

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Size

1.3 x 0.8 x 0.4 cm - Thumbnail 

Formula

2(Fe,Cu)S · 1.5Fe(OH)₂ (RRUFF)

Locality

Oktyabr'skoe Cu-Ni deposit, Talnakh, Noril'sk, Siberia, Russia

Very soft and sectile black Ferrovalleriite with curved habit. This mineral is similar to Ilmenite in color and habit, but easily distinguished by it softness, which is 1 on the hardness scale. The crystal at the arrow is 2mm, however the entire crystal is 5mm across the face. It is associated with Chalcopyrite. The original label is one like that of Dmitriy Belakovskiy's. 

Type & Only Locality