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Erythrite
Erythrite

Rutile
Rutile



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Erythrite
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Erythrite and Rutile Physical Properties

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1 Physical Properties
1.1 Tenacity
Sectile
Not Available
1.2 Solubility
Not Available
Insoluble in acids
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.064.20-4.30
Amber
1 7.18
1.5 Fracture
Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
Uneven, ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
Perfect on {010}; poor on {100} and { 1 02}.
{110} good, 100 moderate, parting on {092} and {011}
1.7 Mohs Hardness
Not Available6-6.5
Amber
2 10
1.8 Chemical Composition
Co3(AsO4)2•8(H2O)
TiO 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Erythrite and Rutile Chemical Formula

While comparing Erythrite 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 Erythrite and Rutile chemical formula.

  • Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
  • Chemical formula of Rutile- TiO 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Erythrite and Rutile Specific Gravity

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