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Bertrandite

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CHP948278

Bertrandite

Classic Locality

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Description
Locality: 
Alpe Campra, Antoliva Valley, Verbano-Cusio-Ossola Province, Piedmont, Italy
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 2 × 1.8 cm
Description

specimen with some very nice colourless or yellowish crystals of bertrandite on matrix.

c. 5484

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

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