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Fettelite & Proustite

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BCK690578

Fettelite & Proustite

David Burgess Collection
Type Locality

Description Tabs

Description
Locality: 
Nieder-Beerbach, Hesse, Germany
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.6 × 2.1 × 1.6 cm
Description

You are bidding on a small sample with very rich clusters of red fettelite plates in rosettes and small single, red hexagonal crystals on matrix with proustite, xanthoconite, stephanite and other minerals. Very rich sample of this rare species from the David Burgess collection. 

Happy Holidays from Bucket Of Holes!

Mineral Data
What's on the rock

Fettelite

Formula: 
[Ag6As2S7][Ag10HgAs2S8]
Strunz: 
2.LA.30
Crystal System: 
Trigonal
Hardness: 
4.0
Type Locality: 
Glasberg quarry, Nieder-Beerbach, Mühltal, Odenwald, Hesse, Germany

Proustite

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

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