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Rutile
Rutile

Prehnite
Prehnite



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Rutile and Prehnite Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Insoluble in acids
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
4.20-4.30
2.80-2.95
1.5 Fracture
Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
1.6 Cleavage
{110} good, 100 moderate, parting on {092} and {011}
Distinct on [001]
1.7 Mohs Hardness
6-6.5
6-6.5
1.8 Chemical Composition
TiO 2Michael O’Donoghue , Gems, Sixth Edition (2006)
Ca2Al2Si3O12(OH)

Rutile and Prehnite Chemical Formula

While comparing Rutile and Prehnite 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 Prehnite chemical formula.

  • Chemical formula of Rutile- TiO 2Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Prehnite- Ca2Al2Si3O12(OH)

Rutile and Prehnite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rutile and Prehnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rutile and Prehnite Optical Properties during the identification of gemstone. Specific gravity of Rutile is 2.80-2.95 whereas that of Prehnite is 2.80-2.95.