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Silvialite

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MEX168286

Silvialite

ex Gera mineral show 2012
Rare Mineral

Description Tabs

Description
Locality: 
Loitsch Quarry, Weida, Greiz, Thuringia, Germany
Size Range: 
Thumbnail (1-3cm)
Size: 
2.7 × 1.3 × 1.6 cm
Description

A very rare member of scapolite group with sulphate dominance. The mineral comes only from two localities. The type locality is in australia, the diabase quarry in loitsch is the second locality worldwide. The evidence is easy. The mineral shows under ultraviolet light a weak yellowish fluorescence.

Mineral Data
What's on the rock

Silvialite

Formula: 
(Ca,Na)4(Al6Si6O24)(SO4,CO3)
Strunz: 
9.FB.15
Crystal System: 
Tetragonal
Hardness: 
5.5
Streak: 
White
Type Locality: 
McBride Province, Charters Towers Region, Queensland, Australia