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Hyalite With Calcite

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CCG607665

Hyalite With Calcite

Description Tabs

Description
Locality: 
Bötzingen, Kaiserstuhl, Baden-Württemberg, Germany
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.7 × 1.6 × 2.4 cm
Description

Glasopal with calcite crystals from Diabassteinbruch, Bötzingen, Kaiserstuhl, Germany

Mineral Data
What's on the rock

Hyalite

Variety Of: 

Opal

Formula: 
SiO2·nH2O
Strunz: 
4.DA.10
Hardness: 
5.5 - 6.5
Formula: 
SiO2·nH2O
Hardness: 
5.5 - 6.5
Streak: 
white

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

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