Brookite and Benitoite Physical Properties

Brookite

Benitoite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

Insoluble: HCl

1.3 Durability

Not Available

1.4 Specific Gravity

3.87-4.143.61-3.68

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

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

[10 1 1] poor

1.7 Mohs Hardness

5.5-66-6.5

2 10

1.8 Chemical Composition

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

BaTiSi 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Brookite and Benitoite Chemical Formula

While comparing Brookite and Benitoite 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 Benitoite chemical formula.

Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Benitoite- BaTiSi 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Brookite and Benitoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Brookite and Benitoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brookite and Benitoite Optical Properties during the identification of gemstone. Specific gravity of Brookite is 3.61-3.68 whereas that of Benitoite is 3.61-3.68.