Kornerupine and Staurolite Physical Properties

Kornerupine

Staurolite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

3.25-3.45

Conchoidal, Uneven

Good on {110}

6.5

Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references

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.

Kornerupine and Staurolite Chemical Formula

While comparing Kornerupine 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 Kornerupine and Staurolite chemical formula.

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Kornerupine and Staurolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kornerupine and Staurolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kornerupine Vs Staurolite during the identification of gemstone. Specific gravity of Kornerupine is whereas that of Staurolite is .