Brookite and Chrysoberyl Physical Properties

Brookite

Chrysoberyl

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.87-4.143.69-3.81

1 7.18

1.5 Fracture

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

Uneven, Conchoidal to uneven, Brittle, Metallic, Uneven, ConchoidalWalter Schumann, Brittle, Metallic

1.6 Cleavage

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

Distinct on {110}, imperfect on {010}, poor on {001}

1.7 Mohs Hardness

5.5-68.5

2 10

1.8 Chemical Composition

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

BeAl ₂ O ₄

Brookite and Chrysoberyl Chemical Formula

While comparing Brookite and Chrysoberyl 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 Brookite and Chrysoberyl chemical formula.

Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Chrysoberyl- BeAl ₂ O ₄

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Brookite and Chrysoberyl Specific Gravity

Another important criteria for qualitative analysis of gemstones is Brookite and Chrysoberyl Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brookite and Chrysoberyl Optical Properties during the identification of gemstone. Specific gravity of Brookite is 3.69-3.81 whereas that of Chrysoberyl is 3.69-3.81.