Variscite and Brookite Physical Properties

Variscite

Brookite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.42-2.583.87-4.14

1 7.18

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Fracture

Conchoidal, Splintery, ConchoidalWalter Schumann

Subconchoidal, Conchoidal

Cleavage

[010] perfect

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

Mohs Hardness

4-55.5-6

2 10

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Chemical Composition

AlPO₄ · 2(H₂O)

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

Variscite and Brookite Chemical Formula

While comparing Variscite 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 Variscite and Brookite chemical formula.

Chemical formula of Variscite- AlPO₄ · 2(H₂O)
Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Variscite and Brookite Specific Gravity

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