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Calcite On Siderite

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ATH758449

Calcite On Siderite

Description Tabs

Description
Locality: 
Herja Mine, Chiuzbaia, Baia Mare, Maramureș County, Romania
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
9.7 × 9 × 4 cm
Description

Very esthetic specimen of calcite formed to "balls" on top of a colorintensive orange-brown siderite matrix from Herja, Romania.

Some of the white calcite crystals show very small black inclusions giving an additional nice contrast.
 

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

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