Vishnevite and Staurolite Physical Properties

Vishnevite

Staurolite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available3.7-3.8

1 7.18

1.5 Fracture

Brittle, Uneven

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

Perfect

Distinct on {010}

1.7 Mohs Hardness

5-67-7.5

2 10

1.8 Chemical Composition

Not Available

(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.

Vishnevite and Staurolite Chemical Formula

While comparing Vishnevite 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 Vishnevite and Staurolite chemical formula.

Chemical formula of Staurolite- (Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.

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Vishnevite and Staurolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vishnevite and Staurolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vishnevite and Staurolite Optical Properties during the identification of gemstone. Specific gravity of Vishnevite is 3.7-3.8 whereas that of Staurolite is 3.7-3.8.