Calcite and Moissanite Physical Properties

Calcite

Moissanite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

none

1.3 Durability

Not Available

1.4 Specific Gravity

2.67-2.733.17-3.24

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle

1.6 Cleavage

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

(0001) indistinct

1.7 Mohs Hardness

39-9.5

2 10

1.8 Chemical Composition

CaCO 3Ulrich Henn and Claudio C.

SiCArthur Thomas , Gemstones (2009)

Calcite and Moissanite Chemical Formula

While comparing Calcite and Moissanite 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 Calcite and Moissanite chemical formula.

Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.
Chemical formula of Moissanite- SiCArthur Thomas , Gemstones (2009)

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Calcite and Moissanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Calcite and Moissanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Calcite and Moissanite Optical Properties during the identification of gemstone. Specific gravity of Calcite is 3.17-3.24 whereas that of Moissanite is 3.17-3.24.