General Information:
Chemical Formula:MgAl2SiO5(OH)2
Composition:(Molecular Weight = 220.37 gm)Magnesium 11.03 %
MgAluminum 24.49 %
AlSilicon 12.74 %
SiHydrogen 0.91 %
H Oxygen 50.82 %
O Empirical Formula: MgAl2SiO5(OH)2
IMA Status:Approved IMA
Physical Properties: Cleavage:[001] Perfect, [110] Distinct
Color:greenish gray or greenish black.
Density:3.5 - 3.6, Average = 3.55
Diaphaniety:Translucent
Hardness:6.5 - Pyrite
Luster:Pearly
Streak:gray white
More details...
