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Pollucite and Coral Physical Properties


Coral and Pollucite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Readily soluble in HF   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.86-2.94   
2.60-2.70   

Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle   
Irregular, Irregular, Gemstones of the world (2001)   

Cleavage
None observed   
Not Available   

Mohs Hardness
6.5-7   
3-4   

Chemical Composition
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references   
CaCO 3Ulrich Henn and Claudio C.   

Optical Properties >>
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Pollucite and Coral Chemical Formula

While comparing Pollucite 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 Pollucite and Coral chemical formula.

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Pollucite and Coral Specific Gravity

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

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