Wadsleyite

General Information:
 Chemical Formula:
(Mg,Fe++)2SiO4
 Composition:
(Molecular Weight = 156.46 gm)
Magnesium 23.30 % Mg
Iron 17.85 % Fe
Silicon 17.95 % Si
Oxygen 40.90 % O 
 Empirical Formula:
Mg1.5Fe2+0.5SiO4
 IMA Status:
Approved IMA 1982
Physical Properties:
 Color:
light gray.
 Density:
3.84
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