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LOOSE FACETED HESSONITE    NATURAL COLOR    Hardness 7.25 - 7.5
Online Certificate
RETURN TO GARNET HESSONITE
Hessonite chemical composition is Ca3Fe3Al2(SiO4)3 it is a Grossular Garnet.
Crystaline system: cubic.
This garnet known for a very long time, and which enjoyed a great popularity at the 19th century, under the reign of the Victoria queen is a irony-grossularite, it is thus rich in iron and present a structure in mosaic.  Its granulous appearance is due to endogenetic and structural characteristics.
Also known as Gomed.
14.96 cts. Pear hessonite garnet single
  x Pieces: 1 Hessonite x x Type: 100% Natural
 
  Color: Orange   Shape: Pear faceted
                 
  Weight: 14.95 Carats   Size: 20.3 x 14.6 mm.
 
  Clarity: MI1   Luster: Excellent
 
  Treatment: None (N)   Origin: Madagascar
We use a  microscopic photography system.   Refr. Index: 1.74   Hardness 7.5
The actual gemstone is smaller than the images shown. Not treated in any way.
 
                                              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 1067.00

ref:HEd1496

     

 

 

 

 

 Depth: 8 mm

   
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Hardness: 7 - 7.5
Specific Gravity: 3.5+   Visual Catalog
Refractive Index: 1.738 - 1745       Garnet data
Chemical Composition: Ca3Al2(SiO4)3,Calcium AluminiumSilicate   Cutting Styles
Crystal Structure: Isometric   Ask a question
- 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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