Formula : Ca(Cu,Zn)4[(OH)6/(SO4)2] * 3 H2O
System: monoclinic Hardness:3½-4 Rarity:not common
Strunz id:VI/D.19-20 -
SULFATES, CHROMATES, MOLYBDATES and TUNGSTATES
Name origin: Named for Giovanni Battista Serpieri (1832-1897), Italian mining entrepreneur, and a developer of mines in the Lavrion District, Attiki, Greece.
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