Brookite and Lawsonite Physical Properties

Brookite

Lawsonite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

3.87-4.143.09

1 7.18

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Fracture

Subconchoidal, Conchoidal

Uneven

Cleavage

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

Perfect on {100} and {010}, imperfect on {101}

Mohs Hardness

5.5-68

2 10

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Chemical Composition

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

CaAl2Si2O7(OH)2.H2O

Brookite and Lawsonite Chemical Formula

While comparing Brookite and Lawsonite 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 Lawsonite chemical formula.

Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Lawsonite- CaAl2Si2O7(OH)2.H2O

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Brookite and Lawsonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Brookite and Lawsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brookite and Lawsonite Optical Properties during the identification of gemstone. Specific gravity of Brookite is 3.09 whereas that of Lawsonite is 3.09.