Chrysoprase and Brookite Physical Properties

Chrysoprase

Brookite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.58-2.643.87-4.14

1 7.18

1.5 Fracture

Gems, Sixth Edition (2006)

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

1.6 Cleavage

None

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

1.7 Mohs Hardness

6.5-75.5-6

2 10

1.8 Chemical Composition

SiO₂ (with a high level of nickel impurities )

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

Chrysoprase and Brookite Chemical Formula

While comparing Chrysoprase 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 Chrysoprase and Brookite chemical formula.

Chemical formula of Chrysoprase- SiO₂ (with a high level of nickel impurities )
Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Chrysoprase and Brookite Specific Gravity

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