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Vernadite

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ESM844407

Vernadite

Description Tabs

Description
Locality: 
Kamariza Mines, Agios Konstantinos, Lavrion District, Attiki Prefecture, Greece
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 4.5 × 2 cm
Description

Small vugs lined with black metallic vernadite needles

Mineral Data
What's on the rock

Vernadite

Formula: 
(Mn4+,Fe3+,Ca,Na)(O,OH)2 · nH2O
Strunz: 
4.FE.40
Crystal System: 
Hexagonal
Hardness: 
2 -
Colour: 
Black
Streak: 
Dark Brown, Black
Type Locality: 
Kusimovskoye, Bashkortostan Republic, Southern Urals, Urals Region, Russia