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LOOSE BLUE TOPAZ                                           Hardness 8

RETURN TO »» TOPAZ                                                                     Online Certificate

Chemical Composition:  Al2(SiO4) (FOH)2 Aluminum fluosilicate
Crystal Structure:            Orthorombic 
Gems are generally found in pegmatites or in alluvium.
16.48 cts. Octagon blue Topaz single
x Pieces: Topaz x x Type:  Genuine
Color: Blue Shape: Octagon faceted
Weight: 16.48 Carats Size: 16.1 x 12.5 mm.
Clarity: FL Luster: Excellent
Treatment: Heated (H) Origin: Brazil
We use a  microscopic photography  Refr. Index: 1.61 - 1.638 Hardness 8
system. The actual gemstone is smaller than the images shown.
Tone: medium blue
Stone price: SOLD

ref: Tpo1648  

 Depth: 8.6 mm.

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- Scale determining the purity of a stone.  -
Flaw less Near flaw less Slightly included 1 Slightly included 2 Medium included 1
Medium included 2 Medium included 3 Very included 1 Very included 2 Highly included
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