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SET HESSONITE-IOLITE     NATURAL COLOR      Hardness 7.5 

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  9.53 cts. Iolite & 9.47 cts.  Hessonite pear single

 Iol.13.9x14.7 / He.14.3x14.7 mm.

Slightly included. Enhancement: none (N)

set PRICE 

USD 2279.00 

ORIGIN: Madagascar

   ref:Set Mix/IO/HE1900  
    Set Hessonite
Hessonite:
Hardness: 7.25
Specific Gravity: 4.19
Refractive Index: 1.4   Visual Catalog
Chemical Composition: Ca3Al2(SiO4)3,Calcium AluminiumSilicate       Garnet data
Crystal Structure: Isometric    Cutting Styles
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Iolite:
Color: Tanzanite Purple Blue
Clarity: Slightly included.
Luster: Good Luster
Origin: Madagacar
Hardness: 7 - 7.5
Specific Gravity: 2.3
Refractive Index: 1.52 - 1.57
Chemical Composition: Mg2Al4Si5O18, Magnesium Aluminum Silicate
Crystal Structure Orthorhombic
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