Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Bertrandite On Smoky Quartz

Views:
Watches:
CR726365

Bertrandite On Smoky Quartz

Classic Locality

Description Tabs

Description
Locality: 
Kounrad Massif, Balkhash, Karaganda Oblast, Kazakhstan
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.8 × 5.8 × 5.2 cm
Description

An excellent and very showy piece from Kazakhstan with a rich  fanlike groups of white lath-like crystals of bertrandite to 16 mm long together with small pyrite and fluorite crystals on a matrix of smoky quartz crystals up to 5.5 cm.

A great and nowadays hard to find specimen, from Armin Wendland collection.

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

Smoky Quartz

Variety Of: 

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Hardness: 
7.0
Formula: 
SiO2
Hardness: 
0.0