Peridot and Brookite Physical Properties

Peridot

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

1.54-1.553.87-4.14

1 7.18

1.5 Fracture

Conchoidal

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

1.6 Cleavage

Poor

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

1.7 Mohs Hardness

6.5-75.5-6

2 10

1.8 Chemical Composition

(Mg,Fe)₂SiO₄

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

Peridot and Brookite Chemical Formula

While comparing Peridot 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 Peridot and Brookite chemical formula.

Chemical formula of Peridot- (Mg,Fe)₂SiO₄
Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Peridot and Brookite Specific Gravity

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