General Information:
Chemical Formula:CaCO3·6(H2O)
Composition:(Molecular Weight = 208.18 gm)Calcium 19.25 %
CaHydrogen 5.81 %
H Carbon 5.77 %
C Oxygen 69.17 %
O Empirical Formula: Ca(CO3)·6(H2O)
Environment:In cold, saline marine waters where the formation of calcite is inhibited. Decomposes into water and calcite above 8 deg. C.
IMA Status:Approved IMA 1963
Locality:Ika Fjord, Ivigtut, Greenland.
Name Origin:After its locality.
Physical Properties: Color:chalky white.
Density:1.77 - 1.8, Average = 1.78
Habits:Stalactitic - Shaped like pendant columns as stalactites or stalagmites (e.g. calcite)., Tabular - Form dimensions are thin in one direction.,
Luster:Earthy (Dull)
Streak:white
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