Brookite and Gypsum Physical Properties

Brookite

Gypsum

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

Brittle

3.87-4.14

Subconchoidal, Conchoidal

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

5.5-6

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

Flexible

Soluble

2.20-2.40

Conchoidal, Splintery, Fibrous

Perfect on {010}, distinct on {100}

CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)

Brookite and Gypsum Chemical Formula

While comparing Brookite and Gypsum 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 Gypsum chemical formula.

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Brookite and Gypsum Specific Gravity

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