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Cubic Zirconia
Cubic Zirconia

Star Ruby
Star Ruby



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Cubic Zirconia
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Star Ruby

Cubic Zirconia and Star Ruby Physical Properties

Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

5.50-6.003.95-4.10
1 7.18
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Fracture

-
Uneven

Cleavage

None
None

Mohs Hardness

8.5-9999
2 10
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Chemical Composition

ZrO 2 + CaO or Y 2O 3 or MgOUlrich Henn and Claudio C.
Al 2O 3Michael O’Donoghue , Gems, Sixth Edition (2006)

Cubic Zirconia and Star Ruby Chemical Formula

While comparing Cubic Zirconia and Star Ruby 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 Cubic Zirconia and Star Ruby chemical formula.

  • Chemical formula of Cubic Zirconia- ZrO 2 + CaO or Y 2O 3 or MgOUlrich Henn and Claudio C.
  • Chemical formula of Star Ruby- Al 2O 3Michael O’Donoghue , Gems, Sixth Edition (2006)

Cubic Zirconia and Star Ruby Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cubic Zirconia and Star Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cubic Zirconia and Star Ruby Optical Properties during the identification of gemstone. Specific gravity of Cubic Zirconia is 3.95-4.10 whereas that of Star Ruby is 3.95-4.10.