Staurolite and Albite Physical Properties

Staurolite

Albite

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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

2.60-2.65

Uneven, Conchoidal

Perfect on {001}, very good on {010}, imperfect on {110}

6-6.5

NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Staurolite and Albite Chemical Formula

While comparing Staurolite and Albite 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 Albite chemical formula.

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Staurolite and Albite Specific Gravity

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