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Proustite With Arsenopyrite Calcite & Quartz

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LGM181355

Proustite With Arsenopyrite Calcite & Quartz

Ex W. Lintz, ex Dr. Schwartz, Bonn, Germany
With Antique Label

Description Tabs

Description
Locality: 
St Andreasberg District, Lower Saxony, Germany
Size Range: 
Small cabinet (7-10 cm)
Size: 
5 × 8 × 2.5 cm
Description

Lustrous, sharp groups of proustite crystals in a vuggy matrix lined with tiny arsenopyrite crystals. The max. size of the groups is 1.1 cm with 0.4 cm for an individual crystal. Some small calcite and quartz crystals are present on the backside. A highly sought-after german classic, comes with old W. Lintz label dated 19th century which means "Arsensilberblende (Proustit) auf Arsenik - Andreasberg", and Dr. Schwartz label.
Weight: 115 grams

Mineral Data
What's on the rock

Proustite

Formula: 
Ag3AsS3
Strunz: 
2.GA.05
Crystal System: 
Trigonal
Hardness: 
2.0 - 2.5

Arsenopyrite

Formula: 
FeAsS
Strunz: 
2.EB.20
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.0

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

Seller Information

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