Vlasovite and Creedite Physical Properties

Vlasovite

Creedite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Nearly insoluble in HCl and HNO₃

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.972.70

1 7.18

1.5 Fracture

Conchoidal, Brittle

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

1.6 Cleavage

Distinct on {010}

Perfect on {100}

1.7 Mohs Hardness

64.5

2 10

1.8 Chemical Composition

Not Available

Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.

Vlasovite and Creedite Chemical Formula

While comparing Vlasovite and Creedite 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 Vlasovite and Creedite chemical formula.

Chemical formula of Creedite- Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.

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Vlasovite and Creedite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vlasovite and Creedite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vlasovite and Creedite Optical Properties during the identification of gemstone. Specific gravity of Vlasovite is 2.70 whereas that of Creedite is 2.70.