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White Opal and Ettringite Physical Properties


Ettringite and White Opal Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Partially soluble in water   

Durability
Not Available   
Not Available   

Specific Gravity
1.98-2.50   
1.77   

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

Cleavage
Not Available   
Perfect on {10 1 0}   

Mohs Hardness
5.5-6.5   
2-2.5   

Chemical Composition
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)   
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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White Opal and Ettringite Chemical Formula

While comparing White Opal 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 White Opal and Ettringite chemical formula.

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White Opal and Ettringite Specific Gravity

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

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