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Staurolite and Rosasite Physical Properties


Rosasite and Staurolite Physical Properties


Physical Properties

Tenacity
Brittle   
Brittle   

Solubility
Not Available   
Effervesces in cold   

Durability
Not Available   
Not Available   

Specific Gravity
3.7-3.8   
4-4.2   

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

Cleavage
Distinct on {010}   
Perfect on {100} and {010}   

Mohs Hardness
7-7.5   
4   

Chemical Composition
(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.   
Not Available   

Optical Properties >>
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Staurolite and Rosasite Chemical Formula

While comparing Staurolite and Rosasite 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 Rosasite chemical formula.

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Staurolite and Rosasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Staurolite and Rosasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Staurolite and Rosasite Optical Properties during the identification of gemstone. Specific gravity of Staurolite is 4-4.2 whereas that of Rosasite is 4-4.2.

Brown Gemstones

Brown Gemstones


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