General Information:
Chemical Formula:
[AlMn++2(OH)6]3SO4)2Na(H2O)6{H2O}6
Composition:
(Molecular Weight = 1,148.01 gm)
Sodium 2.00 % Na
Manganese 28.71 % Mn
Aluminum 7.05 % Al
Hydrogen 3.69 % H
Sulfur 5.59 % S
Oxygen 52.96 % O
Empirical Formula:
Al3Mn2+6(OH)18Na(SO4)2·12(H2O)
IMA Status:
Approved IMA
Physical Properties:
Cleavage:
[???] Perfect, [0001] Good
Color:
light yellow or orange.
Density:
2.32
Diaphaniety:
Transparent to Translucent
Hardness:
2 - Gypsum
Streak:
yellow white
More details...