It occurs in association with carminite, scorodite, mimetite, dussertite, arseniosiderite, pharmacosiderite, olivenite, bayldonite, duftite, anglesite, cerussite and azurite.
12.
"' Arseniosiderite "'is a rare arsenate mineral formed by the oxidation of other arsenic-containing minerals, such as scorodite or arsenopyrite.
13.
"' Scorodite "'is a common hydrated iron arsenate mineral, with the chemical formula FeAsO 4 ?H 2 O . It is found in hydrothermal deposits and as a secondary mineral in gossans worldwide.
