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Rutile
Rutile

Andalusite
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Rutile and Andalusite Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Insoluble in acids
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
4.20-4.30
3.05-3.21
1.5 Fracture
Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)
1.6 Cleavage
{110} good, 100 moderate, parting on {092} and {011}
Good on {110}, poor on {100}
1.7 Mohs Hardness
6-6.5
7.5
1.8 Chemical Composition
TiO 2Michael O’Donoghue , Gems, Sixth Edition (2006)
Al 2SiO 5Michael O’Donoghue , Gems, Sixth edition (2006) More from other references

Rutile and Andalusite Chemical Formula

While comparing Rutile and Andalusite 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 Andalusite chemical formula.

  • Chemical formula of Rutile- TiO 2Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Andalusite- Al 2SiO 5Michael O’Donoghue , Gems, Sixth edition (2006) More from other references

Rutile and Andalusite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rutile and Andalusite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rutile and Andalusite Optical Properties during the identification of gemstone. Specific gravity of Rutile is 3.05-3.21 whereas that of Andalusite is 3.05-3.21.

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