Apophyllite and Vlasovite Physical Properties

Apophyllite

Vlasovite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Nearly insoluble in HCl and HNO₃

1.3 Durability

Not Available

1.4 Specific Gravity

2.30-2.502.97

1 7.18

1.5 Fracture

Uneven, UnevenArthur Thomas, Gemstones (2009)

Conchoidal, Brittle

1.6 Cleavage

Perfect on (001)

Distinct on {010}

1.7 Mohs Hardness

4.5-56

2 10

1.8 Chemical Composition

KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

Not Available

Apophyllite and Vlasovite Chemical Formula

While comparing Apophyllite and Vlasovite 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 Apophyllite and Vlasovite chemical formula.

Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

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Apophyllite and Vlasovite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apophyllite and Vlasovite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite and Vlasovite Optical Properties during the identification of gemstone. Specific gravity of Apophyllite is 2.97 whereas that of Vlasovite is 2.97.