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Bertrandite On Quartz Var Eisenkiesel

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GMB675593

Bertrandite On Quartz Var Eisenkiesel

Rare Mineral

Description Tabs

Description
Locality: 
Dörfel Quarry, Dörfel, Schlettau, Erzgebirge, Saxony, Germany
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 3 × 5 cm
Description

A floater of adularia crystals hosts plenty of elongated quartz crystals, one is doubly terminated and inbetween single arranged big blocky sharp well terminated bertrandite crystals up to 1.5 cm which is quite big considered to other occurrences. Unfortunately 3 damages of quartz crystals but if displayed from the right side, no influence on the appearence.

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

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

Eisenkiesel

Variety Of: 

Quartz

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

Seller Information

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Marco Drechsel

SPK Mittelsachsen

SWIFT/BIC-Code: WELADED1FGX

IBAN: DE49 870520004111076110