Brookite and Bertrandite Physical Properties

Brookite

Bertrandite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

Brittle

3.87-4.14

Subconchoidal, Conchoidal

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

5.5-6

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

2.59-2.60

{001} Perfect, {110} Distinct, {101} Distinct

6-7

Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

Brookite and Bertrandite Chemical Formula

While comparing Brookite and Bertrandite 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 Bertrandite chemical formula.

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Brookite and Bertrandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Brookite and Bertrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brookite Vs Bertrandite during the identification of gemstone. Specific gravity of Brookite is whereas that of Bertrandite is .