Amazonite and Brookite Physical Properties

Amazonite

Brookite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.55-2.573.87-4.14

1 7.18

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Fracture

Uneven

Subconchoidal, Conchoidal

Cleavage

2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal

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

Mohs Hardness

6-6.55.5-6

2 10

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Chemical Composition

KAlSi₃O₈

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

Amazonite and Brookite Chemical Formula

While comparing Amazonite 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 Amazonite and Brookite chemical formula.

Chemical formula of Amazonite- KAlSi₃O₈
Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Amazonite and Brookite Specific Gravity

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