Dumortierite and Rutile Physical Properties

Dumortierite

Rutile

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Insoluble in acids

1.3 Durability

Not Available

1.4 Specific Gravity

3.26-3.414.20-4.30

1 7.18

1.5 Fracture

Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references

Uneven, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Distinct on {100}, poor on {110}; parting on {001}

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

1.7 Mohs Hardness

7-8.56-6.5

2 10

1.8 Chemical Composition

AlAl₆O₃BSi₃O₁₈

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

Dumortierite and Rutile Chemical Formula

While comparing Dumortierite 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 Dumortierite and Rutile chemical formula.

Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈
Chemical formula of Rutile- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Dumortierite and Rutile Specific Gravity

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