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LOOSE IOLITE                    NATURAL COLOR                   Hardness 7.25
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RETURN TO »»   IOLITE
Chemical properties: Mg2Al4Si5O18, Magnesium Aluminum Silicate
6.50 cts. Oval Natural Iolite single
6.50 carats oval iolite gemstone, blue gems, exclusive loose faceted iolites, gemstones shopping   x Pieces: 1 Iolite x x Type: 100% Natural
 
  Color: Blue   Shape: Oval faceted
                 
  Weight: 6.50 Carats   Size: 14.2 x 11 mm.
 
  Clarity: NFL   Luster: Excellent
 
  Treatment: None (N)   Origin: Madagascar
Dichroic effect at a border.   Refr. Index: 1.53-1.55   Hardness 7.25
 
Stone Price:  USD 490.00

ref:Ioo 650

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Color: Top Tanzanite Purple Blue
Clarity: Very slightly included
Luster: Excellent Luster
Origin: Madagacar
Hardness: 7 - 7.5
Specific Gravity: 2.3
Refractive Index: 1.53 - 1.55   Visual Catalog
Chemical Composition: Mg2Al4Si5O18, Magnesium Aluminum Silicate    Cutting Styles
Crystal Structure Orthorhombic   Ask a question

 

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- 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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