Arseniosiderite Mineral Data

General Arseniosiderite Information
Chemical Formula:	Ca2Fe+++3(AsO4)3O2•3(H2O)
Composition:	Molecular Weight = 766.50 gm
	Calcium 10.46 % Ca 14.63 % CaO
	Iron 21.86 % Fe 31.25 % Fe₂O₃
	Arsenic 29.32 % As 44.98 % As₂O₅
	Hydrogen 0.79 % H 7.05 % H₂O
	Oxygen 37.57 % O
	______ ______
	100.00 % 97.91 % = TOTAL OXIDE
Empirical Formula:	Ca₂Fe³⁺₃(AsO₄)₃O₃•3(H₂O)
Environment:	Occurs as a rare secondary mineral formed by the oxidation of earlier arsenic-bearing minerals, typically scorodite or arsenopyrite.
IMA Status:	Valid Species (Pre-IMA) 1842
Locality:	From Romaneche, Saone-et-Loire, France. At Huttenberg, Carinthia, Austria. In Germany, at Schneeberg, Saxony, and at Wittichen and Neubulach, Black Forest. Link to MinDat.org Location Data.
Name Origin:	For essential "arsenic" in the composition, and "sideros," Greek for "iron."
Name Pronunciation:	Arseniosiderite + Pronunciation