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Römerite & Copiapite

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MNR700027

Römerite & Copiapite

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Description Tabs

Description
Locality: 
Bankov, Košice, Košice County, Košice Region, Slovakia (Slovak Republic)
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.8 × 2.6 × 2 cm
Description

Dark red-brown crystals of Römerite covering the sample all over. There are 2 Römerite generations - glossy crystals (red-brown) and dull crystals (pinkish) micro crystals. Copiapite (yellow) is mineral in association.

Mineral Data
What's on the rock

Römerite

Formula: 
Fe2+Fe3+2(SO4)4·14H2O
Strunz: 
7.CB.75
Hardness: 
3.0 - 3.5
Type Locality: 
Rammelsberg Mine, Rammelsberg, Goslar, Harz, Lower Saxony, Germany

Copiapite

Formula: 
Fe2+Fe3+4(SO4)6(OH)2·20H2O
Strunz: 
7.DB.35
Hardness: 
2.5 - 3.0
Type Locality: 
Copiapó Province, Atacama Region, Chile