BENITOITE
Crystal Structure: Hexagonal
Composition: BaTi(Si3O9)Barium Titanium Silicate
Hardness:6.5
SG:3.67
RI:1.76-1.80
DR:0.047
Luster:Vitreous
The blue crystals of benitoite were first distovered in 1906 by a mineral
prospector who mistook them for sapphires. Crystals are shaped like flattened
triangles and have a strong dispersion similar to diamond, but this is
masked by the color. Dichroism is strong: the stone appears blue or colorless
when veiwed from different angles. Colorless crystals are found but rarely
ever faceted.
OCCURRENCE: Crystals occur in veins in blue schists. The sole source
is in San Benito County, California, after which it was named.
Refer: Cally Hall; Gem Stones.
BENITOITE
Size: 5.7x2.5mm
Weight: .20ct
Color: Bicolor nice rich medium blue/colorless(Rare)
Shape: FreeForm
Origin: USA - California
Clarity: Excellent Transparency SI under 10x
Description: Vary rare bicolor benitoite gemstone. One half of this
gem has a rich blue and the other half is colorless. Hard to find
bicolor benitoite in this size stone. Excellent collector's stone or center
piece in a small custom made pendant.
Price: $125.00 plus shipping
BENITOITE
Size: 3.2mm
Weight: .19ct
Color: nice Light Blue
Shape: Princess square cut
Origin: USA - California
Clarity: Good Transparency SI under 10x
Description: Excellent example of a very rare gemstone. This bright
gem has a nice lively light blue color. Nice gem benitoite for a beginning
collector or could be used as a ring or pendant stone making that piece of jewelry one of a kind.
Price: $114.00 plus shipping
SOLD
