General Information:
Chemical Formula:
Na3(Ti,Nb)4(Si2O7)2O4·4(H2O)
Composition:
(Molecular Weight = 750.89 gm)
Sodium 9.18 % Na
Titanium 22.96 % Ti
Niobium 4.95 % Nb
Silicon 14.96 % Si
Hydrogen 1.07 % H
Oxygen 46.88 % O
Empirical Formula:
Na3Ti3.6Nb0.4(Si2O7)2O4·4(H2O)
Environment:
Supergene alteration product of lomonsovite.
Locality:
Lu Javr and Hibina districts, Lovozero Massif, Murmansk, Kola peninsula, Russia.
Name Origin:
Named apparently for the locality.
Physical Properties:
Cleavage:
[001] Perfect
Color:
pink, bright pink, silvery, yellow, or brown.
Density:
2.64 - 2.84, Average = 2.74
Diaphaniety:
Transparent to translucent to opaque
Habits:
Tabular - Form dimensions are thin in one direction., Massive - Uniformly indistinguishable crystals forming large masses.,
Hardness:
2.5-3 - Finger Nail-Calcite
Luster:
Vitreous - Greasy
Streak:
white
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