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Sinnerite & Pyrite

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SKY524961

Sinnerite & Pyrite

Type Locality

Description Tabs

Description
Locality: 
Lengenbach Quarry, Binntal, Valais, Switzerland
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 3 × 2.5 cm
Description

Tiny well formed bronze colored crystals of the extremely rare mineral sinnerite associated to an outstanding pyrite crystal, realgar and an unidentified sulphosalt. Analyzed specimen by EDX  (code of the analysis EDXPR_0479).

Sinnerite is only found in two localities worldwide and Lengenbach is the type locality. Find of 2014 with Official Code Number L-14-6106 label from the FGL (Forschungsgemeinschaft Lengenbach) that will be sent to the buyer (see photo).. The number of confirmed sinnerite specimens from Lengenbach was only 19 until 2002 and this number later grew to only 32 (!) in 2008, so it is a real rarity !!. (Faszination Lengenbach book, 2008).

Mineral Data
What's on the rock

Sinnerite

Formula: 
Cu6As4S9
Strunz: 
2.GC.10
Crystal System: 
Triclinic
Hardness: 
4.0 - 4.5
Type Locality: 
Lengenbach Quarry, Fäld (Imfeld; Im Feld; Feld), Binn Valley, Wallis (Valais), Switzerland

Pyrite

Formula: 
FeS2
Strunz: 
2.EB.05a
Crystal System: 
Isometric
Hardness: 
6.0 - 6.5

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