Ruby and Brucite Physical Properties

Ruby

Brucite

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1 Physical Properties

1.1 Tenacity

Brittle

Sectile

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.97-4.052.39

1 7.18

1.5 Fracture

Conchoidal

Irregular

1.6 Cleavage

No true cleavage

Perfect on {0001}

1.7 Mohs Hardness

92.5

2 10

1.8 Chemical Composition

Al ₂ O ₃

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

Ruby and Brucite Chemical Formula

While comparing Ruby 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 Ruby and Brucite chemical formula.

Chemical formula of Ruby- Al ₂ O ₃
Chemical formula of Brucite- Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Ruby and Brucite Specific Gravity

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