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Celestine and Staurolite Physical Properties


Staurolite and Celestine Physical Properties


Physical Properties

Tenacity
Brittle   
Brittle   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.90-4.00   
3.7-3.8   

Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal   
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle   

Cleavage
Perfect on {001}, good on {210}, poor on {010}   
Distinct on {010}   

Mohs Hardness
3-3.5   
7-7.5   

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

Optical Properties >>
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Celestine and Staurolite Chemical Formula

While comparing Celestine 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 Celestine and Staurolite chemical formula.

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Celestine and Staurolite Specific Gravity

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

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