Vishnevite and Calcite Physical Properties

Vishnevite

Calcite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available

2.67-2.73

1.5 Fracture

Brittle, Uneven

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

1.6 Cleavage

Perfect

Perfect on [10 1 1] three directions with angle of 74° 55

1.7 Mohs Hardness

5-6

1.8 Chemical Composition

Not Available

CaCO 3Ulrich Henn and Claudio C.

Vishnevite and Calcite Chemical Formula

While comparing Vishnevite and Calcite 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 Calcite chemical formula.

Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.

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Vishnevite and Calcite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Vishnevite and Calcite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vishnevite and Calcite Optical Properties during the identification of gemstone. Specific gravity of Vishnevite is 2.67-2.73 whereas that of Calcite is 2.67-2.73.