General Information:
Chemical Formula:Na5YZrSi6018·6(H2O)
Composition:(Molecular Weight = 859.67 gm)Sodium 13.37 %
NaYttrium 10.34 %
Y Zirconium 10.61 %
ZrSilicon 19.60 %
SiHydrogen 1.41 %
H Oxygen 44.67 %
O Empirical Formula: Na5YZrSi6O18·6(H2O)
Environment:In hyperagpaitic pegmatites.
IMA Status:Approved IMA
Locality:Mt. Koashva, SE part of the Khibina alkaline massif, Kola Peninsula, Russia.
Name Origin:Named after Ludmila B. Sazykina (1934- ), a Kola artist.
Physical Properties: Cleavage:[012] Imperfect
Color:light green or yellow.
Density:2.67 - 2.71, Average = 2.69
Diaphaniety:Transparent
Habits:Crystalline - Fine - Occurs as well-formed fine sized crystals., ,
Hardness:5 - Apatite
Luminescence:Fluorescent, Short UV=bright green.
Luster:Vitreous (Glassy)
Streak:white
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