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LOOSE SPHENE                 NATURAL COLOR                Hardness   5 - 5.5
Online Certificate
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.
18.74 cts. Oval sphene single
  x Pieces: 1 Sphene x x Type:  100% Natural
  Color: Yellow-green   Shape: Oval faceted
  Weight: 18.74Carats   Size: 19.7 x 15.2 mm
  Clarity: FL   Luster: Excellent
  Treatment: None (N)   Origin: Madagascar
We use a  microscopic photography    Refr. Index: 1.885 - 2.050   Hardness 5.0-5.5
system. The actual gemstone is smaller than the images shown.
White spots seen in photos are dust.
Stone Price:  USD 11890.00

ref:TIbo 1874





   Depth:8.5 mm 

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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.
Color: Rich green-yellow With Rainbow Flashes
  Clarity: Eye clean
  Luster: Excellent Luster
  Origin: Madagascar   Sphene Article
  Hardness: 5 - 5.5
  Specific Gravity: 3.3 - 3.6   Visual Catalog
  Refractive Index: 1.885 - 2.050   Cutting Styles
  Chemical Composition: CaTiSiO5, Calcium Titanium Silicate   Ask a question
  Crystal Structure: Monoclinic
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