General Information:
Chemical Formula:BaTiSi3O9
Composition:(Molecular Weight = 413.46 gm)Barium 33.21 %
BaTitanium 11.58 %
TiSilicon 20.38 %
SiOxygen 34.83 %
O Empirical Formula: BaTiSi3O9
Environment:Compact granular natrolite veins cutting a grayish green fibrous shist interlayered with serpentine.
Locality:Benitoite Gem mine, head waters of the San Benito river, 1 mile south of Santa Rita Peak, San Benito County, California, USA
Name Origin:Named from its locality.
Physical Properties: Cleavage:[1011] Poor
Color:blue, purple, pink, white, or colorless.
Density:3.6
Diaphaniety:Transparent to translucent
Habits:Tabular - Form dimensions are thin in one direction., ,
Hardness:6-6.5 - Orthoclase-Pyrite
Luminescence:Fluorescent, Short UV=blue.
Luster:Vitreous (Glassy)
Streak:white
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