General Information:
Chemical Formula:Mg3Si2O5(OH)4
Composition:(Molecular Weight = 277.11 gm)Magnesium 26.31 %
MgSilicon 20.27 %
SiHydrogen 1.45 %
H Oxygen 51.96 %
O Empirical Formula: Mg3Si2O5(OH)4
Environment:Metamorphosed and hydrothermally-altered ultra-basic rocks.
Name Origin:From the orthorhombic crystal symmetry and Greek chrysos - "gold" and tilos - "fiber."
Physical Properties: Cleavage:[???] Distinct
Color:brownish, colorless, green, gray, or gray brown.
Density:2.53 - 2.65, Average = 2.59
Diaphaniety:Translucent to opaque
Habits:Massive - Fibrous - Distinctly fibrous fine-grained forms., Amorphous - No crystalline form or imitative shape., Granular - Generally occurs as anhedral to subhedral crystals in matri x.
Hardness:2.5-3 - Finger Nail-Calcite
Luminescence:Non-fluorescent.
Luster:Silky
Streak:white
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