Pyrope and Calcite Physical Properties

Pyrope

Calcite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

insoluble in water

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.62-3.872.67-2.73

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

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

1.6 Cleavage

None

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

1.7 Mohs Hardness

7-7.53

2 10

1.8 Chemical Composition

Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

CaCO 3Ulrich Henn and Claudio C.

Pyrope and Calcite Chemical Formula

While comparing Pyrope 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 Pyrope and Calcite chemical formula.

Chemical formula of Pyrope- Mg 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.

Compare Red Gemstones

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Pyrope Vs Rubellite

Pyrope Vs Rock Crystal

Pyrope and Calcite Specific Gravity

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