Cluster of metallic, pseudohexagonal, brillant chrystal of Pearceite, well exposed on the matrix.
Very well represented for the specie.
Formula : Ag,Cu)16(As,Sb)2S11
System: monoclinic Hardness:3 Rarity:rare
Strunz id:2/E.5-20 -
2 : Sulphides
Name origin: After Dr. Richard Pearce (1837-1927) chemist and metallurgist, Denver, Colorado, USA.
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Specimen weight:28 gr.
Crystal size:Up to 5 mm wide
Overall size: 37mm x 30 mm x 15 mm
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