Brookite and Hexagonite Physical Properties

Brookite

Hexagonite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.87-4.142.98-3.03

1 7.18

1.5 Fracture

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

Uneven

1.6 Cleavage

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

[110] perfect; [010] distinct

1.7 Mohs Hardness

5.5-65-6

2 10

1.8 Chemical Composition

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

Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.

Brookite and Hexagonite Chemical Formula

While comparing Brookite and Hexagonite 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 Hexagonite chemical formula.

Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Hexagonite- Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.

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Brookite and Hexagonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Brookite and Hexagonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brookite and Hexagonite Optical Properties during the identification of gemstone. Specific gravity of Brookite is 2.98-3.03 whereas that of Hexagonite is 2.98-3.03.