It is a member of the adelite-descloizite Group, Conichalcite-Duftite Series.
2.
Adelite forms variably colored ( blue, green, yellow and grey ) crystals in the orthorhombic crystal system.
3.
"' Austinite "'is a member of the adelite-descloizite group, adelite subgroup, the Zn end member of the Cu-Zn series with conichalcite.
4.
"' Austinite "'is a member of the adelite-descloizite group, adelite subgroup, the Zn end member of the Cu-Zn series with conichalcite.
5.
This indicates a solid solution among conichalcite, CaCu ( AsO 4 ) ( OH ), austinite, CaZn ( AsO 4 ) ( OH ) and duftite PbCu ( AsO 4 ) ( OH ), all of them belonging to the adelite group of arsenates.
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