General Information:
Chemical Formula:
Ca3Si2O7
Composition:
(Molecular Weight = 288.40 gm)
Calcium 41.69 % Ca
Silicon 19.48 % Si
Oxygen 38.83 % O
Empirical Formula:
Ca3(Si2O7)
Environment:
Retrograde replacement of rankinite.
Locality:
Kilchoan, Ardnamurchan, Scotland.
Name Origin:
Named for the locality.
Physical Properties:
Cleavage:
None
Color:
colorless.
Density:
2.99
Diaphaniety:
Transparent
Streak:
white
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