Hematite and Brookite Physical Properties

Hematite

Brookite

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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

5.00-5.303.87-4.14

1 7.18

1.5 Fracture

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle

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

1.6 Cleavage

None, may show partings on {0001} and {10 1 1}

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

1.7 Mohs Hardness

65.5-6

2 10

1.8 Chemical Composition

Fe 2O 3Arthur Thomas , Gemstones (2009)

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

Hematite and Brookite Chemical Formula

While comparing Hematite 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 Hematite and Brookite chemical formula.

Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)
Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Hematite and Brookite Specific Gravity

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