Staurolite and Azurite Physical Properties

Staurolite

Azurite

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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.

Brittle

3.70-3.90

Conchoidal

Perfect on {011}, fair on {100}, poor on {110}

3.5-4

Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Staurolite and Azurite Chemical Formula

While comparing Staurolite and Azurite 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 Azurite chemical formula.

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Staurolite and Azurite Specific Gravity

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