Calcite and Pearl Physical Properties

Calcite

Pearl

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.67-2.73

2.60-2.85

1.5 Fracture

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

Gemstones of the world (2001), UnevenWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

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

none

1.7 Mohs Hardness

2.5-4.5

1.8 Chemical Composition

CaCO 3Ulrich Henn and Claudio C.

Not Available

Calcite and Pearl Chemical Formula

While comparing Calcite and Pearl 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 Pearl chemical formula.

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

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Calcite and Pearl Specific Gravity

Another important criteria for qualitative analysis of gemstones is Calcite and Pearl Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Calcite and Pearl Optical Properties during the identification of gemstone. Specific gravity of Calcite is 2.60-2.85 whereas that of Pearl is 2.60-2.85.