General Information:
Chemical Formula:
V+++2Ti3O9
Composition:
(Molecular Weight = 389.52 gm)
Titanium 36.88 % Ti
Vanadium 26.16 % V
Oxygen 36.97 % O
Empirical Formula:
V3+2Ti3O9
Environment:
Microscopic inclusions in rutile found in a V-enriched gneiss. Polymorph of kyzylkumite.
IMA Status:
Approved IMA 1976
Locality:
Kwale District, S of Voi, Kenya.
Name Origin:
Named for Werner Schreyer (1930-), Ruhr University, Bochum, Germany.
Physical Properties:
Color:
black brown.
Diaphaniety:
Opaque to subtranslucent
Habits:
Microscopic Crystals - Crystals visible only with microscopes., ,
Hardness:
7 - Quartz
Luster:
Metallic
More details...