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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.
51.57 cts. Oval sphene single
  x Pieces: 1 Sphene x x Type:  100% Natural
  Color: Yellow-green   Shape: Oval faceted
  Weight: 51.57Carats   Size: 33.3 x 19.5 mm
  Clarity: FL   Luster: Excellent
  Treatment: None (N)   Origin: Madagascar
    Refr. Index: 1.885 - 2.050   Hardness 5.0-5.5
  Depth:9.2 mm
White spots seen in photos are dust.
Stone Price:   28779.00 USD

ref:TIbo 5157




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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: Green-yellow
  Clarity: Eye clean
  Luster: Good Luster
  Origin: Madagascar
  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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