Duftite-beta Mineral Data

General Duftite-beta Information
Chemical Formula:	PbCu(AsO4)(OH)
Composition:	Molecular Weight = 426.67 gm
	Copper 14.89 % Cu 18.64 % CuO
	Arsenic 17.56 % As 26.93 % As₂O₅
	Hydrogen 0.24 % H 2.11 % H₂O
	Lead 48.56 % Pb 52.31 % PbO
	Oxygen 18.75 % O
	______ ______
	100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:	PbCu(AsO₄)(OH)
Environment:	Secondary mineral in the oxidized zone of hydrothermal base metal deposits. Duftite-beta (1956) is now considered a compositional intermediate in the duftite-conichalcite series
IMA Status:	Discredited IMA 2006
Locality:	Tsumeb, Namibia. Link to MinDat.org Location Data.
Name Origin:	Named in 1920 for G. Duft, general manager of the mine at Tsumeb, Namibia.
Name Pronunciation:	Duftite-beta
Synonym:	Beta-duftite