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Ettringite and Pezzottaite Physical Properties


Pezzottaite and Ettringite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Partially soluble in water   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
1.77   
2.90-3.14   

Fracture
Not Available   
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle   

Cleavage
Perfect on {10 1 0}   
Imperfect; basal   

Mohs Hardness
2-2.5   
7.5-8   

Chemical Composition
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)   
(Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.   

Optical Properties >>
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Ettringite and Pezzottaite Chemical Formula

While comparing Ettringite and Pezzottaite 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 Ettringite and Pezzottaite chemical formula.

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Ettringite and Pezzottaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ettringite and Pezzottaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ettringite and Pezzottaite Optical Properties during the identification of gemstone. Specific gravity of Ettringite is 2.90-3.14 whereas that of Pezzottaite is 2.90-3.14.

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