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Ruby
Ruby

Turquoise
Turquoise



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Ruby and Turquoise Physical Properties

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1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
Soluble
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.97-4.05
2.30-2.90
1.5 Fracture
Conchoidal
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
1.6 Cleavage
No true cleavage
Good to perfect_usually N/A
1.7 Mohs Hardness
9
5-6
1.8 Chemical Composition
Al 2 O 3
CuAl6(PO4)4(OH)8 • 4H2O

Ruby and Turquoise Chemical Formula

While comparing Ruby and Turquoise 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 Ruby and Turquoise chemical formula.

  • Chemical formula of Ruby- Al 2 O 3
  • Chemical formula of Turquoise- CuAl6(PO4)4(OH)8 • 4H2O

Ruby and Turquoise Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Turquoise Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Turquoise Optical Properties during the identification of gemstone. Specific gravity of Ruby is 2.30-2.90 whereas that of Turquoise is 2.30-2.90.