Arakiite
A variety of Minerals
What is Arakiite?
Arakiite is a rare mineral with the formula (Zn,Mn)(Mn,Mg)12(Fe,Al)2(AsO3)(AsO4)2(OH)23. It is both arsenate and arsenite mineral, a combination that is rare in the world of minerals. Arakiite is stoichiometrically similar to hematolite. It is one of many rare minerals coming from the famous Långban manganese skarn deposit in Sweden. Other minerals bearing both arsenite and zinc include kraisslite and mcgovernite. The mineral crystallizes in the monoclinic crystal system in space group Cc.
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Arakiite Localities Map
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Quick Facts
Physical Properties
- Color
- Redbrown to orangebrown
- Hardness (Mohs)
- 3 - 4
- Density
- 3.41 g/cm³
- Streak
- Pale-brown
Chemical Properties
- Chemical Formula
- (Zn,Mn2+)(Mn2+,Mg)12(Fe3+,Al)2(As5+O4)2(As3+O3)(OH)23
- Elements
- Al, As, Fe, H, Mg, Mn, O, Zn
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