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Dioptase and Coral Physical Properties


Coral and Dioptase Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Soluble   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.25-3.35   
2.60-2.70   

Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle   
Irregular, Irregular, Gemstones of the world (2001)   

Cleavage
Perfect in three directions   
Not Available   

Mohs Hardness
5   
3-4   

Chemical Composition
CuSiO 2(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   
CaCO 3Ulrich Henn and Claudio C.   

Optical Properties >>
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Dioptase and Coral Chemical Formula

While comparing Dioptase and Coral 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 Dioptase and Coral chemical formula.

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Dioptase and Coral Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dioptase and Coral Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dioptase and Coral Optical Properties during the identification of gemstone. Specific gravity of Dioptase is 2.60-2.70 whereas that of Coral is 2.60-2.70.

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Green Gemstones


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