Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Dolomite Calcite & Goethite

Views:
Watches:
ESM907984

Dolomite Calcite & Goethite

Description Tabs

Description
Locality: 
Anduze Quarry, Anduze, Gard, Occitanie, France
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
11 × 6.5 × 5.5 cm
Description

A coverage of white dolomite crystals and lustrous calcite crystals with dark goethite inclusions on the reverse side

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

Goethite

Formula: 
α-Fe3+O(OH)
Strunz: 
4.00.
Crystal System: 
Orthorhombic
Hardness: 
5.0 - 5.5
Type Locality: 
Hollertszug Mine (Hollerter Zug Mine), Dermbach, Herdorf, Siegerland, Rhineland-Palatinate, Germany