General Information:
Chemical Formula:
Ca3Si2O4(OH)6
Composition:
(Molecular Weight = 342.45 gm)
Calcium 35.11 % Ca
Silicon 16.40 % Si
Hydrogen 1.77 % H
Oxygen 46.72 % O
Empirical Formula:
Ca3(Si2O4)(OH)6
Environment:
Alteration product of spurrite.
Locality:
TL: Dutoitspan diamond mine at Kimberly, South Africa.
Physical Properties:
Cleavage:
[001] Perfect, [???] Distinct
Color:
colorless or white.
Density:
2.62
Diaphaniety:
Transparent to Subtransparent to translucent
Habits:
Massive - Uniformly indistinguishable crystals forming large masses., Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).,
Hardness:
3 - Calcite
Luster:
Vitreous (Glassy)
Streak:
white
More details...