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Iolite
Iolite

Elbaite
Elbaite



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Iolite
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Elbaite

Iolite and Elbaite Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.6-2.72.90-3.10
Amber
1 7.18
1.5 Fracture
Not Available
Uneven, Conchoidal, Brittle, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
1.6 Cleavage
3,1
Poor/indistinct on {1120} and {1011}
1.7 Mohs Hardness
7-7.57
Amber
2 10
1.8 Chemical Composition
Mg2Al4Si5O18
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references

Iolite and Elbaite Chemical Formula

While comparing Iolite and Elbaite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Iolite and Elbaite chemical formula.

  • Chemical formula of Iolite- Mg2Al4Si5O18
  • Chemical formula of Elbaite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references

Iolite and Elbaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iolite and Elbaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Elbaite Optical Properties during the identification of gemstone. Specific gravity of Iolite is 2.90-3.10 whereas that of Elbaite is 2.90-3.10.