Brookite and Nickeline Physical Properties

Brookite

Nickeline

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.87-4.14Not Available

1 7.18

1.5 Fracture

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

Conchoidal, Uneven

1.6 Cleavage

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

{1010} Imperfect, {0001} Imperfect

1.7 Mohs Hardness

5.5-65-5.5

2 10

1.8 Chemical Composition

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

Not Available

Brookite and Nickeline Chemical Formula

While comparing Brookite and Nickeline 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 Nickeline chemical formula.

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

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Brookite and Nickeline Specific Gravity

Another important criteria for qualitative analysis of gemstones is Brookite and Nickeline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brookite and Nickeline Optical Properties during the identification of gemstone. Specific gravity of Brookite is Not Available whereas that of Nickeline is Not Available.