General Information:
Chemical Formula:Mg3Si4O10(OH)2
Composition:(Molecular Weight = 379.27 gm)Magnesium 19.23 %
MgSilicon 29.62 %
SiHydrogen 0.53 %
H Oxygen 50.62 %
O Empirical Formula: Mg3Si4O10(OH)2
Environment:Hydrothermal alteration of non-aluminous magnesian silicates.
Locality:Common world wide.
Name Origin:From the Arabic.
Physical Properties: Cleavage:[001] Perfect
Color:pale green, white, gray white, yellowish white, or brownish white.
Density:2.7 - 2.8, Average = 2.75
Diaphaniety:Translucent
Habits:Foliated - Two dimensional platy forms., Scaly - Morphology like fish scales., Massive - Uniformly indistinguishable crystals forming large masses.
Hardness:1 - Talc
Luminescence:Fluorescent.
Luster:Vitreous - Pearly
Streak:white
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