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Polydymite With Bismuthinite & Sulphur

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LGM537521

Polydymite With Bismuthinite & Sulphur

Ex Ring collection, Munich, Germany
Type Locality

Description Tabs

Description
Locality: 
Grüneau Mine, Schutzbach, Altenkirchen, North Rhine - Westphalia, Germany
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1 × 1.7 × 1.1 cm
Weight: 
3.00gr
Description

Polydymite is a rare Ni sulfosalt. The specimen hosts octahedral polydymite crystals scattered over the specimen. Accompanied by acicular bismuthinite crystals in vugs and some yellowish sulfur crusts.

The Grüneau Mine (Grüne Au Mine; Grünau Mine), Schutzbach, Betzdorf, Siegerland, Rhineland-Palatinate, Germany is the type locality for polydymite.

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

Bismuthinite

Formula: 
Bi2S3
Strunz: 
2.DB.05
Hardness: 
2.0 - 2.5
Streak: 
Lead-gray

Sulphur

Formula: 
S8
Strunz: 
1.CC.05
Crystal System: 
Orthorhombic
Hardness: 
1.5 - 2.5

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