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Emerald and Coral Physical Properties


Coral and Emerald Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Hard   
Not Available   

Specific Gravity
2.67-2.78   
2.60-2.70   

Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)   
Irregular, Irregular, Gemstones of the world (2001)   

Cleavage
Imperfect on the [0001]   
Not Available   

Mohs Hardness
7.5-8   
3-4   

Chemical Composition
Be3Al2SiO6   
CaCO 3Ulrich Henn and Claudio C.   

Optical Properties >>
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Emerald and Coral Chemical Formula

While comparing Emerald 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 Emerald and Coral chemical formula.

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Emerald and Coral Specific Gravity

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

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