Emerald and Brucite Physical Properties

Emerald

Brucite

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1 Physical Properties

1.1 Tenacity

Not Available

Sectile

1.2 Solubility

Not Available

1.3 Durability

Hard

Not Available

1.4 Specific Gravity

2.67-2.78

2.39

1.5 Fracture

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)

Irregular

1.6 Cleavage

Imperfect on the [0001]

Perfect on {0001}

1.7 Mohs Hardness

7.5-8

2.5

1.8 Chemical Composition

Be₃Al₂SiO₆

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

Emerald and Brucite Chemical Formula

While comparing Emerald 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 Emerald and Brucite chemical formula.

Chemical formula of Emerald- Be₃Al₂SiO₆
Chemical formula of Brucite- Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Emerald and Brucite Specific Gravity

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