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Powellite and Staurolite Physical Properties


Staurolite and Powellite Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
4.23   
3.7-3.8   

Fracture
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal   
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle   

Cleavage
{111} Distinct   
Distinct on {010}   

Mohs Hardness
3.5-4   
7-7.5   

Chemical Composition
CaMoO 4Michael O’Donoghue , Gems, Sixth Edition (2006)   
(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.   

Optical Properties >>
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Powellite and Staurolite Chemical Formula

While comparing Powellite and Staurolite 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 Powellite and Staurolite chemical formula.

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Powellite and Staurolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Powellite and Staurolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Powellite and Staurolite Optical Properties during the identification of gemstone. Specific gravity of Powellite is 3.7-3.8 whereas that of Staurolite is 3.7-3.8.

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