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Vishnevite

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SYM765674

Vishnevite

Rare Mineral

Description Tabs

Description
Locality: 
Farnese, Làtera Volcano, Viterbo Province, Lazio, Italy
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1.5 × 1 cm
Description

Prismatic crystals of vishnevite on matrix.

Mineral Data
What's on the rock

Vishnevite

Formula: 
(Na,K)8(Al6Si6O24)(SO4,CO3)·2H2O
Strunz: 
9.FB.05
Hardness: 
5.0 - 6.0
Streak: 
white
Type Locality: 
Kurochkin Log, Vishnevye Mts (Vishnyovye; Cherry), Chelyabinsk Oblast', Southern Urals, Urals Region, Russia...