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Bertrandite

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CR1048995

Bertrandite

Rare Mineral

Description Tabs

Description
Locality: 
Naßfeld Valley, St Johann im Pongau District, Salzburg, Austria
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 3.8 × 3 cm
Description

Beautiful sharp and gemmy clear bertrandite crystals on a bed of quartz crystals.

Very fine small specimen - collected 1971

Mineral Data
What's on the rock

Bertrandite

Formula: 
Be4(Si2O7)(OH)2
Strunz: 
9.BD.05
Crystal System: 
Orthorhombic
Hardness: 
6.0 - 7.0
Type Locality: 
Petit-Port, Nantes, Loire-Atlantique, Pays de Loire, France