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Iolite
Iolite

Danburite
Danburite



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Iolite
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Danburite

Iolite and Danburite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.6-2.7
-
3,1
7-7.5
Mg2Al4Si5O18
 
Brittle
-
-
2.97-3.03
Uneven, ConchoidalWalter Schumann, Conchoidal
{001} Poor
7
CaB 2(SiO 4) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Iolite and Danburite Chemical Formula

While comparing Iolite and Danburite 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 Danburite chemical formula.

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Iolite and Danburite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iolite and Danburite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite Vs Danburite during the identification of gemstone. Specific gravity of Iolite is whereas that of Danburite is .