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Ilvaite

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SHS25947

Ilvaite

Description Tabs

Description
Locality: 
1st Sovetskii Mine, Dalnegorsk, Primorskiy Kray, Russian Federation
Size Range: 
Thumbnail (1-3cm)
Size: 
2.8 × 1.7 × 1.8 cm
Largest Crystal: 
2.80cm
Description

Black ilvaite crystal

Mineral Data
What's on the rock

Ilvaite

Formula: 
CaFe2+2Fe3+(Si2O7)O(OH)
Strunz: 
9.BE.07
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.0
Type Locality: 
Torre di Rio - Santa Filomena area (Monte della Torre), Rio Marina, Elba Island, Livorno Province, Tuscany, Italy