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Calcite & Siderite

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SHS1048902

Calcite & Siderite

Description Tabs

Description
Locality: 
Maharitra, Sahatany Valley, Ibity, Antsirabe II, Vakinankaratra, Madagascar
Class: 
Massive/Crystalline
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 3.5 × 3.2 cm
Description

Nice septaria from madagascar

Mineral Data
What's on the rock

Calcite

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

Siderite

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