Beryl and Brookite Physical Properties

Beryl

Brookite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.60-2.903.87-4.14

1 7.18

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Fracture

Uneven, Conchoidal, Irregular

Subconchoidal, Conchoidal

Cleavage

Imperfect on {0001}

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

Mohs Hardness

7.5-85.5-6

2 10

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Chemical Composition

Be₃Al₂Si₆O₁₈

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

Beryl and Brookite Chemical Formula

While comparing Beryl 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 Beryl and Brookite chemical formula.

Chemical formula of Beryl- Be₃Al₂Si₆O₁₈
Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Beryl and Brookite Specific Gravity

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