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Amethyst Quartz & Calcite

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ZLT786769

Amethyst Quartz & Calcite

Description Tabs

Description
Locality: 
Tivoli Quarry, Schweisweiler, Winnweiler, Donnersbergkreis, Rhineland-Palatinate, Germany
Class: 
Crystal Group/Cluster
Size Range: 
Cabinet (10-18 cm)
Size: 
10 × 7 × 2 cm
Description

Plate of quartz with a layer of amethyst and calcite on top.
 

Mineral Data
What's on the rock

Amethyst

Variety Of: 

Quartz

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

Quartz

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

Calcite

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

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