Glaucophane and Brookite Physical Properties

Glaucophane

Brookite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3-3.153.87-4.14

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal

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

1.6 Cleavage

Good on [110] and on [001]

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

1.7 Mohs Hardness

6.0-6.55.5-6

2 10

1.8 Chemical Composition

[ ]Na2(Mg3Al2)Si8O22(OH)2

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

Glaucophane and Brookite Chemical Formula

While comparing Glaucophane 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 Glaucophane and Brookite chemical formula.

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

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Glaucophane and Brookite Specific Gravity

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