Kyzylkumite

Formula:  V2Ti3O9

Origin of name:  From locality; Kyzyl-Kum, Uzbekistan

 

Crystal system:  Monoclinic

Crystal class:  Unknown

Twinning: 

Unit cell: 

 

Colour:  Black

Diaphaneity: 

Luster:  Vitreous to resinous

Habit:  Prismatic grains, microscopic, may have pyramidal terminations on striations parallel to elongation

Hardness

Specific gravity:  3.77

Cleavage:  None

Tenacity: 

Streak: 

 

Synonyms/varieties:

 

Comments:  Dimorphous with schreyerite

 

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