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Powellite
Powellite

Staurolite
Staurolite



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Powellite
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Staurolite

Powellite and Staurolite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
4.23
Conchoidal
{111} Distinct
3.5-4
CaMoO 4Michael O’Donoghue , Gems, Sixth Edition (2006)
 
Brittle
-
-
3.7-3.8
Subconchoidal, Conchoidal
Distinct on {010}
7-7.5
(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.

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 Vs Staurolite during the identification of gemstone. Specific gravity of Powellite is whereas that of Staurolite is .