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Marcasite On Calcite

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CLB159444

Marcasite On Calcite

ex collection Rolf Heeren
Classic Locality

Description Tabs

Description
Locality: 
Becke-Oese Quarry, Menden, Iserlohn, Arnsberg, North Rhine - Westphalia, Germany
Size Range: 
Cabinet (10-18 cm)
Size: 
12.2 × 11 × 7 cm
Description

Very large and beautiful specimen, even though some of the bigcrystal tips are broken (and healed ...). The flaky marcasite crystals are sharp and lustrous.

Mineral Data
What's on the rock

Marcasite

Formula: 
FeS2
Strunz: 
2.EB.10a
Crystal System: 
Orthorhombic
Hardness: 
6.0 - 6.5

Calcite

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

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