Metallic, steel-gray very rare Lengenbachite xls in needles up to 0.8 mm in a vug of white contrasting dolomia matrix from the famous Swiss and type locality.
Regional Museum Binn n. L-23815.
Formula :
Pb6(Ag,Cu)2As4S13
System: triclinic Hardness:1-2 Rarity:very rare
Strunz id:II/E.15-50 -
SULFIDES
Name origin: From the type locality, the Lengenbach quarry, Binntal, Valais, Switzerland.
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 Specimen weight:33 gr.
 Crystal size:up to 0.8 mm tall
 Overall size: 42mm x 25 mm x 22 mm
 Owner : Minservice (Sondrio - Italy) Minservice Galleries Main 
 This specimen will be shipped by: Minservice
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