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Staurolite and Albite Physical Properties


Albite and Staurolite Physical Properties


Physical Properties

Tenacity
Brittle  
Brittle  

Solubility
-  
-  

Durability
-  
-  

Specific Gravity
3.7-3.8  
2.60-2.65  

Fracture
Subconchoidal, Conchoidal  
Uneven, Conchoidal  

Cleavage
Distinct on {010}  
Perfect on {001}, very good on {010}, imperfect on {110}  

Mohs Hardness
7-7.5  
6-6.5  

Chemical Composition
(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.  
NaAlSi 3O 8Michael O’Donoghue , Gems, Sixth Edition (2006)  

Optical Properties >>
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Staurolite and Albite Chemical Formula

While comparing Staurolite and Albite 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 Staurolite and Albite chemical formula.

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Staurolite and Albite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Staurolite and Albite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Staurolite and Albite Optical Properties during the identification of gemstone. Specific gravity of Staurolite is 2.60-2.65 whereas that of Albite is 2.60-2.65.

Brown Gemstones

Brown Gemstones


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