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Siderite & Dolomite On Quartz

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SHS39368

Siderite & Dolomite On Quartz

Description Tabs

Description
Locality: 
Aurora Mine, Ramsbeck, Bestwig, Arnsberg, North Rhine - Westphalia, Germany
Size Range: 
Cabinet (10-18 cm)
Size: 
14 × 8.7 × 3.2 cm
Description

Brownsiderite crystals with dolomite crystals on quartz with some millerite and nakrite.

Mineral Data
What's on the rock

Siderite

Formula: 
FeCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.5 - 4.5
Streak: 
White

Dolomite

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

Quartz

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