Brucite and Bertrandite Physical Properties

Brucite

Bertrandite

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1 Physical Properties

1.1 Tenacity

Sectile

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.392.59-2.60

1 7.18

1.5 Fracture

Irregular

Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

Perfect on {0001}

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

1.7 Mohs Hardness

2.56-7

2 10

1.8 Chemical Composition

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

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

Brucite and Bertrandite Chemical Formula

While comparing Brucite and Bertrandite 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 Bertrandite chemical formula.

Chemical formula of Brucite- Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

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Brucite and Bertrandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Brucite and Bertrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brucite and Bertrandite Optical Properties during the identification of gemstone. Specific gravity of Brucite is 2.59-2.60 whereas that of Bertrandite is 2.59-2.60.