Tetrawickmanite

General Information:
 Chemical Formula:
Mn++Sn++++(OH)6
 Composition:
(Molecular Weight = 275.69 gm)
Manganese 19.93 % Mn
Tin 43.06 % Sn
Hydrogen 2.19 % H 
Oxygen 34.82 % O 
 Empirical Formula:
Mn2+Sn(OH)6
 IMA Status:
Approved IMA 1973
Physical Properties:
 Cleavage:
None
 Color:
brown orange or honey yellow.
 Density:
3.65
 Diaphaniety:
Transparent to Translucent
 Hardness:
3.5-4.5
 Luster:
Vitreous (Glassy)
 Streak:
white
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