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  Home  >>  Mineral Encyclopedia  >>  Mineral datum  >>  Mallardite
Mallardite
Mallardite
Chemical
Formula
 MnSO4·7H2O
Species
 Sulfates
Crystal
System
 Monoclinic
Mohs
Scale
 2
Color
 Light rose pink; colourless in transmitted light.
Streak
 White
Luster
 Vitreous
Refractive
Index
 n = 1.462 n = 1.465 n = 1.474
Diaphaneity
 Transparent, Translucent
Cleavage
 Distinct/GoodOn good; possibly also on .
Crystal Habit：Artificial crystals are tabular . Fibrous masses and crusts.
Geological Setting：Oxidation of iron/manganese sulfides and carbonates in water saturated environments.
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