Komarovite

Formula:  (H,Ca)2Nb2Si2O10(OH,F)2 . H2O

Origin of name:  For V. Komarov, Russian cosmonaut

 

Crystal system:  Orthorhombic

Crystal class:  Unknown

Twinning: 

Unit cell: 

 

Colour:  Pale rose

Diaphaneity: 

Luster:  Dull

Habit:  Massive, foliated, platy

Hardness:  1.5 to 2

Specific gravity:  3.0

Cleavage:  1; {001} fair

Tenacity: 

Streak:  White

 

Synonyms/varieties:

 

Comments: 

 

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