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Vernadite

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ESM710603

Vernadite

Rare Mineral

Description Tabs

Description
Locality: 
Lavrion District Mines, Attiki Prefecture, Greece
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
2 × 3.5 × 2.7 cm
Description

Vugs lined with acicular metallic vernadite crystals

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