Vishnevite and Creedite Physical Properties

Vishnevite

Creedite

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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 Available2.70

1 7.18

1.5 Fracture

Brittle, Uneven

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

1.6 Cleavage

Perfect

Perfect on {100}

1.7 Mohs Hardness

5-64.5

2 10

1.8 Chemical Composition

Not Available

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

Vishnevite and Creedite Chemical Formula

While comparing Vishnevite 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 Vishnevite and Creedite chemical formula.

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

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Vishnevite and Creedite Specific Gravity

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