General Information:
Chemical Formula:Ca3Si2O7
Composition:(Molecular Weight = 288.40 gm)Calcium 41.69 %
CaSilicon 19.48 %
SiOxygen 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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