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Polydymite

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CR119927

Polydymite

Rare Mineral

Description Tabs

Description
Locality: 
Grüneau Mine, Schutzbach, Altenkirchen, Rhineland-Palatinate, Germany
Size Range: 
Thumbnail (1-3cm)
Size: 
1.8 × 1.5 × 1.3 cm
Description

Sharp octahedral polydymite crystals with siderite in a small vug.

Very rare mineral from an old collection.

Mineral Data
What's on the rock

Polydymite

Formula: 
Ni2+Ni3+2S4
Strunz: 
2.DA.05
Crystal System: 
Isometric
Hardness: 
4.5 - 5.5
Type Locality: 
Grüneau Mine (Grüne Au Mine; Grünau Mine), Schutzbach, Betzdorf, Siegerland, Rhineland-Palatinate, Germany