General Information:
Chemical Formula:
(H,Ca)2(Nb,Ti)2Si2O10(OH,F)2·(H2O)
Environment:
In alkalic syenites.
IMA Status:
Approved IMA 1971
Locality:
Mt. Karnasurt, Lovozero massif, Kola peninsula, Russia.
Name Origin:
Named for Vladimir M. Komarov (1927-1967), Russian cosmonaut, who was killed during his return flight on April, 23, 1967.
Physical Properties:
Cleavage:
[001] Good
Color:
white, light brown, or light pink.
Density:
3.61 - 3.76, Average = 3.68
Habits:
Massive - Uniformly indistinguishable crystals forming large masses., ,
Hardness:
4 - Fluorite
Luminescence:
Non-fluorescent.
Luster:
Adamantine
Streak:
white
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