Arsentsumebite Mineral Data

General Arsentsumebite Information
Chemical Formula:	Pb2Cu(AsO4)(SO4)(OH)
Composition:	Molecular Weight = 729.94 gm
	Copper 8.71 % Cu 10.90 % CuO
	Arsenic 10.26 % As 15.74 % As₂O₅
	Hydrogen 0.14 % H 1.23 % H₂O
	Lead 56.77 % Pb 61.16 % PbO
	Sulfur 4.39 % S 10.97 % SO₃
	Oxygen 19.73 % O
	______ ______
	100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:	Pb₂Cu(AsO₄)(SO₄)(OH)
Environment:	A rare mineral in the oxidized zone of a dolostone-hosted hydrothermal polymetallic ore deposit (Tsumeb, Namibia); in a hydrothermal polymetallic barite-fluorite deposit (Clara mine , Germany).
IMA Status:	Valid Species (Pre-IMA) 1935
Locality:	From Tsumeb, Namibia. In the Clara mine, near Oberwolfach, Black Forest, Germany. Link to MinDat.org Location Data.
Name Origin:	Named as the "arsenate" analog of "tsumebite."
Name Pronunciation:	Arsentsumebite + Pronunciation