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Dolomite Psm Calcite With Hematite

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CLB118399

Dolomite Psm Calcite With Hematite

ex coll. Herbert Seckler

Description Tabs

Description
Locality: 
Stromberg Quarry, Stromberg, Hunsrück, Rhineland-Palatinate, Germany
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.4 × 4.2 × 3.5 cm
Largest Crystal: 
5.00cm
Description

Very sharp calcite scalenohedron, completely replaced by dolomite and covered with haematite. Minor chipping. Brown dolomite underside shown in picture.

Mineral Data
What's on the rock

Dolomite

Formula: 
CaMg(CO3)2
Strunz: 
5.AB.10
Crystal System: 
Trigonal - Rhombohedral
Hardness: 
3.5 - 4.0
Streak: 
White

Calcite

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

Hematite

Formula: 
Fe2O3
Strunz: 
4.CB.05
Crystal System: 
Trigonal
Hardness: 
5.0 - 6.0

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