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Staurolite and Chalcedony Physical Properties


Chalcedony and Staurolite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Soluble   

Durability
Not Available   
Not Available   

Specific Gravity
3.7-3.8   
2.55-2.70   

Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle   
Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann   

Cleavage
Distinct on {010}   
Absent   

Mohs Hardness
7-7.5   
6.5-7   

Chemical Composition
(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.   
SiO2   

Optical Properties >>
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Staurolite and Chalcedony Chemical Formula

While comparing Staurolite and Chalcedony 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 Chalcedony chemical formula.

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Staurolite and Chalcedony Specific Gravity

Another important criteria for qualitative analysis of gemstones is Staurolite and Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Staurolite and Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Staurolite is 2.55-2.70 whereas that of Chalcedony is 2.55-2.70.

Brown Gemstones

Brown Gemstones


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