Staurolite and Kurnakovite Physical Properties

Staurolite

Kurnakovite

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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.

Soluble

1.847-1.852

Conchoidal

Poor to indistinct on {010}

2-3

Ca3Al3(SiO4)3(OH)

Staurolite and Kurnakovite Chemical Formula

While comparing Staurolite and Kurnakovite 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 Kurnakovite chemical formula.

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Staurolite and Kurnakovite Specific Gravity

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