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Calcite & Pyrite

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SKI888071

Calcite & Pyrite

Classic Locality

Description Tabs

Description
Locality: 
Gyöngyösoroszi, Mátra Mountains, Heves County, Hungary
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.7 × 4.5 × 2 cm
Largest Crystal: 
3.20cm
Description

An older example of white calcite on pyrite-covered matrix. Red (calcite) under UV-LW.

Ex collection Dr. Siegmar Tyroff, Frankfurt, Germany (pre 1968).

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

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