Ilesite

n. ilesite (Minerals)

General Information:
 Chemical Formula:
(Mn,Zn,Fe++)SO4·4(H2O)
 Composition:
(Molecular Weight = 226.29 gm)
Manganese 14.57 % Mn
Zinc 8.67 % Zn
Iron 2.47 % Fe
Hydrogen 3.56 % H 
Sulfur 14.17 % S 
Oxygen 56.56 % O 
 Empirical Formula:
Mn2+0.6Zn0.3Fe2+0.1(SO4)·4(H2O)
Physical Properties:
 Color:
green, greenish white, or white.
 Density:
2.261
 Diaphaniety:
Transparent
 Hardness:
2-3 - Gypsum-Calcite
 Luminescence:
Non-fluorescent.
 Luster:
Vitreous (Glassy)
 Streak:
white
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