Brookite and Glaucophane Physical Properties

Brookite

Glaucophane

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

3.87-4.143-3.15

1 7.18

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Fracture

Subconchoidal, Conchoidal

Conchoidal

Cleavage

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

Good on [110] and on [001]

Mohs Hardness

5.5-66.0-6.5

2 10

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Chemical Composition

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

[ ]Na2(Mg3Al2)Si8O22(OH)2

Brookite and Glaucophane Chemical Formula

While comparing Brookite and Glaucophane 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 Glaucophane chemical formula.

Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Glaucophane- [ ]Na2(Mg3Al2)Si8O22(OH)2

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Brookite and Glaucophane Specific Gravity

Another important criteria for qualitative analysis of gemstones is Brookite and Glaucophane Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brookite and Glaucophane Optical Properties during the identification of gemstone. Specific gravity of Brookite is 3-3.15 whereas that of Glaucophane is 3-3.15.