Emerald and Brookite Physical Properties

Emerald

Brookite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Hard

Specific Gravity

2.67-2.783.87-4.14

1 7.18

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Fracture

Uneven, ConchoidalWalter Schumann

Subconchoidal, Conchoidal

Cleavage

Imperfect on the [0001]

Poor on {120}, in traces on {001}

Mohs Hardness

7.5-85.5-6

2 10

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Chemical Composition

Be₃Al₂SiO₆

TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Emerald and Brookite Chemical Formula

While comparing Emerald and Brookite 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 Brookite chemical formula.

Chemical formula of Emerald- Be₃Al₂SiO₆
Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Emerald Vs Rhodizite

Emerald Vs Ruby

Emerald and Brookite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Emerald and Brookite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Emerald and Brookite Optical Properties during the identification of gemstone. Specific gravity of Emerald is 3.87-4.14 whereas that of Brookite is 3.87-4.14.