Carnallite and Brucite Physical Properties

Carnallite

Brucite

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1 Physical Properties

1.1 Tenacity

Not Available

Sectile

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.62.39

1 7.18

1.5 Fracture

Violet, Conchoidal, Brittle, Conchoidal, Brittle

Irregular

1.6 Cleavage

None

Perfect on {0001}

1.7 Mohs Hardness

2.52.5

2 10

1.8 Chemical Composition

KMgCl3•6(H2O)

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

Carnallite and Brucite Chemical Formula

While comparing Carnallite 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 Carnallite and Brucite chemical formula.

Chemical formula of Carnallite- KMgCl3•6(H2O)
Chemical formula of Brucite- Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Carnallite and Brucite Specific Gravity

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