Staurolite and Diaspore Physical Properties

Staurolite

Diaspore

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

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.

Very brittle

insoluble

3.30-3.40

Conchoidal

{010} perfect, {110} distinct, {100} in traces

6.5-7

AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Staurolite and Diaspore Chemical Formula

While comparing Staurolite and Diaspore 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 Diaspore chemical formula.

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Staurolite and Diaspore Specific Gravity

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