General Information:
Chemical Formula:(Na,Ca,[ ])2ZrSi3O9·2(H2O)
Composition:(Molecular Weight = 414.57 gm)Sodium 5.55 %
NaCalcium 8.70 %
CaZirconium 22.00 %
ZrSilicon 20.32 %
SiHydrogen 0.97 %
H Oxygen 42.45 %
O Empirical Formula: NaCa0.9ZrSi3O9·2(H2O)
Locality:Laven Island, Langesundfjord area, and Bratthagen, Norway.
Name Origin:Named from the Greek for "wholly' and "full", because it is allways accompanied by a number of rare minerals.
Physical Properties: Cleavage:[110] Perfect, [010] Perfect
Color:blue, brown, colorless, yellow, or yellow brown.
Density:2.75
Diaphaniety:Transparent to translucent
Habits:Platy - Sheet forms (e.g. micas)., Pseudo Hexagonal - Crystals show a hexagonal outline.,
Hardness:6 - Orthoclase
Luminescence:Non-fluorescent.
Luster:Vitreous (Glassy)
Streak:white
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