Beryllonite and Brookite Physical Properties

Beryllonite

Brookite

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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

2.79-2.873.87-4.14

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

{010} perfect; {100} good, interrupted; {101} indistinct; {001} in traces

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

1.7 Mohs Hardness

5.5-65.5-6

2 10

1.8 Chemical Composition

NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Beryllonite and Brookite Chemical Formula

While comparing Beryllonite 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 Beryllonite and Brookite chemical formula.

Chemical formula of Beryllonite- NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Beryllonite and Brookite Specific Gravity

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