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Calcite & Pyrite On Quartz

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SHS779364

Calcite & Pyrite On Quartz

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Description
Locality: 
Gyöngyösoroszi, Mátra Mountains, Heves County, Hungary
Class: 
Crystals on Matrix
Size Range: 
Museum (18cm plus)
Size: 
20.5 × 14.5 × 5 cm
Description

Two generations of calcite crystals with some pyrite on quartz crystals, old pre world war 2 piece

Mineral Data
What's on the rock

Calcite

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

Pyrite

Formula: 
FeS2
Strunz: 
2.EB.05a
Crystal System: 
Isometric
Hardness: 
6.0 - 6.5

Quartz

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

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$30
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Start 14 Sep 18:00
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