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Siderite & Calcite

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BMM582963

Siderite & Calcite

Description Tabs

Description
Locality: 
Hüttenberg, Sankt Veit an der Glan District, Carinthia, Austria
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 3 × 3 cm
Description

Highly lustrous rhombohedral crystals of siderite up to 0.5 cm in size. The crystals are coated with white translucent crystalline calcites. The piece is well crystalized all around. The bottom was extracted from the rock but also recrystallized. All in all a very nice piece!

Mineral Data
What's on the rock

Siderite

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

Calcite

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