Kyanite and Rutile Physical Properties

Kyanite

Rutile

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

Insoluble in acids

1.3 Durability

Not Available

1.4 Specific Gravity

3.53-3.65

4.20-4.30

1.5 Fracture

Splintery, Brittle, Metallic

Uneven, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

[100] perfect [010] imperfect with 79° angle between

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

1.7 Mohs Hardness

4-7

6-6.5

1.8 Chemical Composition

Not Available

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

Kyanite and Rutile Chemical Formula

While comparing Kyanite and Rutile 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 Kyanite and Rutile chemical formula.

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

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Kyanite and Rutile Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kyanite and Rutile Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kyanite and Rutile Optical Properties during the identification of gemstone. Specific gravity of Kyanite is 4.20-4.30 whereas that of Rutile is 4.20-4.30.