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Bannermanite

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GMN513078

Bannermanite

Description Tabs

Description
Locality: 
Liebenbergite Dump, Sounion, Agios Konstantinos, Lavrion District, Attiki Prefecture, Greece
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
1.6 × 0.5 × 0.5 cm
Description

Brownish green aggregate of asbestiform crystals.

Mineral Data
What's on the rock

Bannermanite

Formula: 
(Na,K)0.7V4+0.7V5+5.3O15
Strunz: 
4.HF.05
Crystal System: 
Monoclinic
Hardness: 
0.0
Type Locality: 
Izalco Volcano, Sonsonate Department, El Salvador

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