General Information:
Chemical Formula:
(Mg,Ni)Al4Si3O13·4(H2O) (?)
Composition:
(Molecular Weight = 505.14 gm)
Magnesium 3.61 % Mg
Aluminum 21.37 % Al
Silicon 16.68 % Si
Nickel 2.90 % Ni
Hydrogen 1.60 % H
Oxygen 53.84 % O
Empirical Formula:
Mg0.75Ni0.25Al4Si3O13·4(H2O)
Physical Properties:
Color:
emerald green.
Density:
2.27
Hardness:
3 - Calcite
Streak:
greenish white
More details...