Brucite and Calcite Physical Properties

Brucite

Calcite

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1 Physical Properties

1.1 Tenacity

Sectile

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.392.67-2.73

1 7.18

1.5 Fracture

Irregular

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

1.6 Cleavage

Perfect on {0001}

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

1.7 Mohs Hardness

2.53

2 10

1.8 Chemical Composition

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

CaCO 3Ulrich Henn and Claudio C.

Brucite and Calcite Chemical Formula

While comparing Brucite 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 Brucite and Calcite chemical formula.

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

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Brucite and Calcite Specific Gravity

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