General Information:
Chemical Formula:Ca2SnAl2Si6O18(OH)2·2(H2O)
Composition:(Molecular Weight = 779.38 gm)Calcium 10.28 %
CaAluminum 6.92 %
AlSilicon 21.62 %
SiTin 15.23 %
SnHydrogen 0.78 %
H Oxygen 45.16 %
O Empirical Formula: Ca2SnAl2Si6O18(OH)2·2(H2O)
IMA Status:Approved IMA 1970
Name Origin:Name after Easton, Pennsylvania, USA.
Physical Properties: Cleavage:None
Color:colorless or white.
Density:2.93
Diaphaniety:Transparent
Hardness:5.5 - Knife Blade
Luster:Vitreous (Glassy)
Streak:white
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