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Quartz With Calcite

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AST68486

Quartz With Calcite

Description Tabs

Description
Locality: 
Madem-Lakko Mine, Cassandra Mines, Aristotelis, Chalkidiki, Central Macedonia, Greece
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 6.5 × 3 cm
Description

Semi-transparent groups of quartz crystals on matrix (all around crystallized) with one attachment point. On the quartz crystals there are a few transparent calcite crystals and psevdomorphs of quartz after an unknown platy mineral (probably carbonate).

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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