Metakottigite Mineral Data

General Metakottigite Information
Chemical Formula:	(Zn,Fe+++,Fe++)3(AsO4)2•8((H2O),OH)
Composition:	Molecular Weight = 603.71 gm
	Zinc 18.41 % Zn 22.92 % ZnO
	Iron 12.03 % Fe 15.47 % FeO
	Arsenic 24.82 % As 38.07 % As₂O₅
	Hydrogen 2.34 % H 20.89 % H₂O
	Oxygen 42.40 % O
	______ ______
	100.00 % 97.35 % = TOTAL OXIDE
Empirical Formula:	Zn_1.7Fe²⁺_1.3(AsO₄)₂•6(H₂O)(OH)₂
Environment:	Secondary mineral from the oxide zone of an arsenic-rich polymetallic mineral deposit, formed by oxidation and concomitant dehydrogenization of ferroan kottigite.
IMA Status:	Approved IMA 1982
Locality:	Ojuela mine, Mapimi, Durango, Mexico. Link to MinDat.org Location Data.
Name Origin:	Named for its dimorphous relationship to kottigite, and by analogy to metavivianite.
Name Pronunciation:	Metakottigite + Pronunciation
Synonym:	Metakoettigite