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Hematite Siderite On Rhodochrosite

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KFT73974

Hematite Siderite On Rhodochrosite

Description Tabs

Description
Locality: 
Illinois, United States of America
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.3 × 3.5 × 2 cm
Description

Light grey haematite on a matrix of rhodochrosite and some siderite.

Mineral Data
What's on the rock

Hematite

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

Siderite

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

Rhodochrosite

Formula: 
MnCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Cavnic Mine (Kapnikbánya), Cavnic (Kapnic; Kapnik), Maramureș Co., Romania