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SPHENE                           NATURAL COLOR                       Hardness   5 - 5.5
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43.73 cts. Sphene oval. brown cola. Single 

 32 x 16.6 mm.  Depth:9.2 mm

(This type is very rare.) giant sphene

 Slightly included. Enhancement: none (N)

                   stone PRICE     

               USD 15560.00    

ORIGIN: Madagascar

ref:TIbe 4373

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 brown-cola With Rainbow Flashes
  Clarity: Slightly included
  Luster: Good 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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