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SET TOURMALINE-IOLITE     NATURAL COLOR      Hardness 7.5 

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  9.08 cts. Iolite & 8.30 cts.  Rubellite pear single

 Iol.15.5x13.7 / To.15.1x13.3 mm.

Slightly included. Enhancement: none (N)

set PRICE

USD 5239.00 

ORIGIN: Madagascar

   ref:Set Mix/17.38  
Tourmaline:
Hardness: 7 - 7.5
Specific Gravity: 3.0+   Visual Catalog
Refractive Index: 1.62 - 1.68 Tourmaline data
Chemical Composition: Na(Li,Al)3Al6Si6O18(BO3)3 (OH)4, Sodium Lithium Aluminum Boro-Silicate Hydroxide   Ask a question
Crystal Structure: Trigonal
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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