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LOOSE SPHENE                 NATURAL COLOR                Hardness 5.0-5.5
    Online Certificate
    RETURN TO »» SPHENE
Chemical Composition: CaTiSiO5, Calcium Titanium
Crystal Structure: Monoclinic
Environment: Magmatic, metamorphic and hydrothermal rocks.
Name Origin: Titanite Named after its chemical composition of titanium.
This stone shows an exceptional capacity to restore the light, thanks in particular to its high 
refractive index, especially under not very enlightened condition.
5.56 cts. Pear sphene single
  x Pieces: 1 Sphene x x Type:  100%Natural
 
  Color: Yellowish Green   Shape: Pear faceted
                 
  Weight: 5.56 Carats   Size: 15.7 x 14 mm.
 
  Clarity: NFL   Luster: Excellent
 
  Treatment: None (N)   Origin: Madagascar
  Refr. Index: 1.885 - 2.050   Hardness 5.0-5.5
This is a virtual certificate compiled from the lab data for the gemstone being examined. Clarity is based on magnification under a 10X corrected loupe. All gemology performed by GGGems. Jean & Alain Darbellay guaranteeing that this stone is 100% natural. Prices and availability are subject to change without notice.
Stone Price:  USD 995.00

ref:TIyp556

Depth : 5.7 mm.

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- Scale determining the purity of a stone.  -
FL NFL SI1 SI2 MI1
Flaw less Near flaw less Slightly included 1 Slightly included 2 Medium included 1
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MI2 MI3 VI1 VI2 HI
Medium included 2 Medium included 3 Very included 1 Very included 2 Highly included
 
 
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