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Ettringite and Diaspore Physical Properties


Diaspore and Ettringite Physical Properties


Physical Properties

Tenacity
Not Available   
Very brittle   

Solubility
Partially soluble in water   
insoluble   

Durability
Not Available   
Not Available   

Specific Gravity
1.77   
3.30-3.40   

Fracture
Not Available   
Conchoidal, Brittle, Conchoidal   

Cleavage
Perfect on {10 1 0}   
{010} perfect, {110} distinct, {100} in traces   

Mohs Hardness
2-2.5   
6.5-7   

Chemical Composition
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)   
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references   

Optical Properties >>
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Ettringite and Diaspore Chemical Formula

While comparing Ettringite and Diaspore 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 Diaspore chemical formula.

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Ettringite and Diaspore Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ettringite and Diaspore Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ettringite and Diaspore Optical Properties during the identification of gemstone. Specific gravity of Ettringite is 3.30-3.40 whereas that of Diaspore is 3.30-3.40.

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