Brookite and Pezzottaite Physical Properties

Brookite

Pezzottaite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

3.87-4.142.90-3.14

1 7.18

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Fracture

Subconchoidal, Conchoidal

Conchoidal, Uneven

Cleavage

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

Imperfect; basal

Mohs Hardness

5.5-67.5-8

2 10

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Chemical Composition

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

(Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.

Brookite and Pezzottaite Chemical Formula

While comparing Brookite and Pezzottaite 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 Pezzottaite chemical formula.

Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Pezzottaite- (Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.

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Brookite and Pezzottaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Brookite and Pezzottaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brookite and Pezzottaite Optical Properties during the identification of gemstone. Specific gravity of Brookite is 2.90-3.14 whereas that of Pezzottaite is 2.90-3.14.