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Coral and Ettringite Physical Properties


Ettringite and Coral Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Partially soluble in water   

Durability
Not Available   
Not Available   

Specific Gravity
2.60-2.70   
1.77   

Fracture
Irregular, Irregular, Gemstones of the world (2001)   
Not Available   

Cleavage
Not Available   
Perfect on {10 1 0}   

Mohs Hardness
3-4   
2-2.5   

Chemical Composition
CaCO 3Ulrich Henn and Claudio C.   
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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Coral and Ettringite Chemical Formula

While comparing Coral and Ettringite 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 Coral and Ettringite chemical formula.

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Coral and Ettringite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Coral and Ettringite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Coral and Ettringite Optical Properties during the identification of gemstone. Specific gravity of Coral is 1.77 whereas that of Ettringite is 1.77.

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