Old Classic!! A cluster of very shaped Proustite crystal 6 mm wide is set nicely on matrix.. Ex Sandro Maggia collection.
Formula : Ag3AsS3
System: trigonal Hardness:2-2˝ Rarity:not common
Strunz id:II/E.7-10 -
SULFIDES
Name origin: After the French chemist and actor Joseph-Louis Proust (26 September 1754 – 5 July 1826).
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Specimen weight:96 gr.
Crystal size:5 mm wide
Overall size: 60mm x 42 mm x 27 mm
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