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Ettringite and Pyrope Physical Properties


Pyrope and Ettringite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Partially soluble in water   
insoluble in water   

Durability
Not Available   
Not Available   

Specific Gravity
1.77   
3.62-3.87   

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

Cleavage
Perfect on {10 1 0}   
None   

Mohs Hardness
2-2.5   
7-7.5   

Chemical Composition
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)   
Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)   

Optical Properties >>
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Ettringite and Pyrope Chemical Formula

While comparing Ettringite and Pyrope 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 Pyrope chemical formula.

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Ettringite and Pyrope Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ettringite and Pyrope Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ettringite and Pyrope Optical Properties during the identification of gemstone. Specific gravity of Ettringite is 3.62-3.87 whereas that of Pyrope is 3.62-3.87.

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