Rutile and Allanite Physical Properties

Rutile

Allanite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Insoluble in acids

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.20-4.303.40-4.20

1 7.18

1.5 Fracture

Uneven, ConchoidalArthur Thomas, Gemstones (2009)

Not Available

1.6 Cleavage

{110} good, 100 moderate, parting on {092} and {011}

Not Available

1.7 Mohs Hardness

6-6.5Not Available

2 10

1.8 Chemical Composition

TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Not Available

Rutile and Allanite Chemical Formula

While comparing Rutile and Allanite 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 Rutile and Allanite chemical formula.

Chemical formula of Rutile- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Rutile and Allanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rutile and Allanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rutile and Allanite Optical Properties during the identification of gemstone. Specific gravity of Rutile is 3.40-4.20 whereas that of Allanite is 3.40-4.20.