General Information:
Chemical Formula:Na2Ce[Si6O14(OH)]·n(H2O), (n >= 1.5)
Composition:(Molecular Weight = 622.63 gm)Sodium 7.38 %
NaCerium 22.50 %
CeSilicon 27.06 %
SiHydrogen 0.65 %
H Oxygen 42.40 %
O Empirical Formula: Na2·1.5(H2O)CeSi6O14(OH)
Environment:Cavities in sodalite zenoliths.
IMA Status:Approved IMA 1987
Locality:Mt. Karnasurt, Lovozero massif, Kola Peninsula, Russia.
Name Origin:Named for Nikolai Petrovich Sazhin (1898-1969), Founder of the Russian rare-earth industry.
Physical Properties: Cleavage:[100] Perfect, [010] Perfect, [001] Very Good
Color:gray, gray white, or pearl white.
Density:2.61
Habits:Tabular - Form dimensions are thin in one direction., Platy - Sheet forms (e.g. micas)., Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Hardness:2.5 - Finger Nail
Luster:Vitreous - Pearly
Streak:white
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