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Quartz & Calcite

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AST590841

Quartz & Calcite

Description Tabs

Description
Locality: 
Wollastonite Outcrop, Xanthi, East Macedonia and Thrace, Greece
Class: 
Single Crystal
Size Range: 
Thumbnail (1-3cm)
Size: 
1.8 × 2.3 × 0.7 cm
Description

Perfect heart shaped Japan Law twin quartz with a line of calcite crystals at the back.A thin film of iron oxides partly covers the specimen but can be removed easily.Beautiful thumbnail from the locality known for the finest Japan Law twins in Greece.

Mineral Data
What's on the rock

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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