Weight - 9.66 cts
Measurement :
             Lenght – 13.00 mm
             Breadth – 12.80
             Depth – 6.42
Colour -  Purplish Blue
Cut - Mixed
Shape - Cushion
Polariscope - Double Refraction
R.I - 1.691 – 1.700 Mean
Pleochroism - Present
S.G - 3.38
Ultra Violet -
           L/W – Inert
           S/W – Inert
Microscope - Minate Crystals
Identification - A Natural Tanzanite

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