Calcite and Brucite Physical Properties

Calcite

Brucite

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1 Physical Properties

1.1 Tenacity

Brittle

Sectile

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.67-2.732.39

1 7.18

1.5 Fracture

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

Irregular

1.6 Cleavage

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

Perfect on {0001}

1.7 Mohs Hardness

32.5

2 10

1.8 Chemical Composition

CaCO 3Ulrich Henn and Claudio C.

Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Calcite and Brucite Chemical Formula

While comparing Calcite and Brucite 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 Brucite chemical formula.

Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.
Chemical formula of Brucite- Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Calcite and Brucite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Calcite and Brucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Calcite and Brucite Optical Properties during the identification of gemstone. Specific gravity of Calcite is 2.39 whereas that of Brucite is 2.39.