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Andalusite
Andalusite

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Andalusite and Rutile Physical Properties

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

Andalusite and Rutile Chemical Formula

While comparing Andalusite 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 Andalusite and Rutile chemical formula.

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

Andalusite and Rutile Specific Gravity

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

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