Bertrandite and Calcite Physical Properties

Bertrandite

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

2.59-2.602.67-2.73

1 7.18

1.5 Fracture

Brittle, Metallic, Brittle, Metallic

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

1.6 Cleavage

{001} Perfect, {110} Distinct, {101} Distinct

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

1.7 Mohs Hardness

6-73

2 10

1.8 Chemical Composition

Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

CaCO 3Ulrich Henn and Claudio C.

Bertrandite and Calcite Chemical Formula

While comparing Bertrandite 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 Bertrandite and Calcite chemical formula.

Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.

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Bertrandite and Calcite Specific Gravity

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