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Iolite and Emerald Physical Properties


Emerald and Iolite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Hard   

Specific Gravity
2.6-2.7   
2.67-2.78   

Fracture
Not Available   
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)   

Cleavage
3,1   
Imperfect on the [0001]   

Mohs Hardness
7-7.5   
7.5-8   

Chemical Composition
Mg2Al4Si5O18   
Be3Al2SiO6   

Optical Properties >>
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Iolite and Emerald Chemical Formula

While comparing Iolite and Emerald 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 Emerald chemical formula.

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Iolite and Emerald Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iolite and Emerald Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Emerald Optical Properties during the identification of gemstone. Specific gravity of Iolite is 2.67-2.78 whereas that of Emerald is 2.67-2.78.

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