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Iolite and Dioptase Physical Properties


Dioptase and Iolite Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Soluble   

Durability
Not Available   
Not Available   

Specific Gravity
2.6-2.7   
3.25-3.35   

Fracture
Not Available   
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle   

Cleavage
3,1   
Perfect in three directions   

Mohs Hardness
7-7.5   
5   

Chemical Composition
Mg2Al4Si5O18   
CuSiO 2(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   

Optical Properties >>
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Iolite and Dioptase Chemical Formula

While comparing Iolite and Dioptase 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 Dioptase chemical formula.

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Iolite and Dioptase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iolite and Dioptase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Dioptase Optical Properties during the identification of gemstone. Specific gravity of Iolite is 3.25-3.35 whereas that of Dioptase is 3.25-3.35.

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