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Gypsum and Powellite Physical Properties


Powellite and Gypsum Physical Properties


Physical Properties

Tenacity
Flexible   
Not Available   

Solubility
Soluble   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.20-2.40   
4.23   

Fracture
Conchoidal, Splintery, Fibrous, UnevenArthur Thomas, Gemstones (2009)   
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal   

Cleavage
Perfect on {010}, distinct on {100}   
{111} Distinct   

Mohs Hardness
2   
3.5-4   

Chemical Composition
CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)   
CaMoO 4Michael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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Gypsum and Powellite Chemical Formula

While comparing Gypsum and Powellite 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 Gypsum and Powellite chemical formula.

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Gypsum and Powellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gypsum and Powellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gypsum and Powellite Optical Properties during the identification of gemstone. Specific gravity of Gypsum is 4.23 whereas that of Powellite is 4.23.

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