Brookite and Friedelite Physical Properties

Brookite

Friedelite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

3.87-4.143.06-3.19

1 7.18

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Fracture

Subconchoidal, Conchoidal

Uneven

Cleavage

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

{010} Perfect

Mohs Hardness

5.5-64-5

2 10

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Chemical Composition

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

Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.

Brookite and Friedelite Chemical Formula

While comparing Brookite and Friedelite 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 Friedelite chemical formula.

Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Friedelite- Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.

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Brookite and Friedelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Brookite and Friedelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brookite and Friedelite Optical Properties during the identification of gemstone. Specific gravity of Brookite is 3.06-3.19 whereas that of Friedelite is 3.06-3.19.