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Bertrandite

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SHS172913

Bertrandite

Description Tabs

Description
Locality: 
Madonna d'Ongero, Carona, Lugano, Ticino, Switzerland
Size Range: 
Thumbnail (1-3cm)
Size: 
1.6 × 1.5 × 1.1 cm
Description

Bertrandite crystals on matrix

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