General Information:
Chemical Formula:(Mg,Fe)2SiO4
Composition:(Molecular Weight = 153.31 gm)Magnesium 25.37 %
MgIron 14.57 %
FeSilicon 18.32 %
SiOxygen 41.74 %
O Empirical Formula: Mg1.6Fe2+0.4(SiO4)
Environment:Basic and ultra basic igneous rocks.
IMA Status:Not IMA Approved
Locality:Common world wide occurrence.
Name Origin:Named after the green color.
Physical Properties: Cleavage:[001] Good, [010] Distinct
Color:yellowish green, olive green, greenish black, or reddish brown.
Density:3.27 - 3.37, Average = 3.32
Diaphaniety:Transparent to translucent
Habits:Massive - Granular - Common texture observed in granite and other igneous rock., ,
Hardness:6.5-7 - Pyrite-Quartz
Luminescence:Non-fluorescent.
Luster:Vitreous (Glassy)
Streak:white
More details...
