Metallic, steel-gray Baumhauerite xls measuring 4x3 mm in a vug of white contrasting dolomia matrix from the famous Swiss and type locality.
Formula :
Pb3As4S9
System: triclinic Hardness:3 Rarity:very rare
Strunz id:II/E.24-10 -
SULFIDES
Name origin: After H.A. Baumhauer (1848-1926), Professor of Mineralogy, University of Fribourg, Switzerland.
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 Specimen weight:102 gr.
 Crystal size:5 mm long
 Overall size: 60mm x 30 mm x 27 mm
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