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Tennantite series - Kalgoorlie-Boulder City

Collectors Summary

Chemical Formula Cu10(Fe,Zn)2As4S13
Color stahlgrau, blaugrau-metallisch
Streak color rotbraun, schwarz
Lustre Metallglanz
Hardness (Mohs) 3.5 - 4
Solubility ++ HNO3, Königswasser
Crystal System kubisch, I43m