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Siderite & Calcite

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MGR931339

Siderite & Calcite

Classic Locality

Description Tabs

Description
Locality: 
Turt Mine, Negrești-Oas, Satu Mare County, Romania
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.2 × 3.3 × 2.6 cm
Description

Here we have a fantastic specimen featuring a well developed sphere of lustrous siderite from Romania. It is accompanied with several pale calcite crystals as a base were the siderite is placed on.

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