Brookite and Creedite Physical Properties

Brookite

Creedite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

3.87-4.142.70

1 7.18

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Fracture

Subconchoidal, Conchoidal

Uneven, Conchoidal

Cleavage

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

Perfect on {100}

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

Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.

Brookite and Creedite Chemical Formula

While comparing Brookite and Creedite 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 Creedite chemical formula.

Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Creedite- Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.

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Brookite and Creedite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Brookite and Creedite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brookite and Creedite Optical Properties during the identification of gemstone. Specific gravity of Brookite is 2.70 whereas that of Creedite is 2.70.