Brookite and Ammolite Physical Properties

Brookite

Ammolite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.87-4.14

2.75-2.80

1.5 Fracture

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

Uneven, Granular

1.6 Cleavage

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

no true cleavage

1.7 Mohs Hardness

5.5-6

1.8 Chemical Composition

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

Not Available

Brookite and Ammolite Chemical Formula

While comparing Brookite and Ammolite 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 Ammolite chemical formula.

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

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Brookite and Ammolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Brookite and Ammolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brookite and Ammolite Optical Properties during the identification of gemstone. Specific gravity of Brookite is 2.75-2.80 whereas that of Ammolite is 2.75-2.80.