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Cat s Eye
Cat s Eye

Star Ruby
Star Ruby



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Cat s Eye
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Star Ruby

Cat s Eye and Star Ruby Physical Properties

Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

3.5-3.83.95-4.10
1 7.18
👆🏻

Fracture

-
Uneven

Cleavage

1,1 ; 3,2
None

Mohs Hardness

8.5-9999
2 10
👆🏻

Chemical Composition

BeAl 2 O 4
Al 2O 3Michael O’Donoghue , Gems, Sixth Edition (2006)

Cat s Eye and Star Ruby Chemical Formula

While comparing Cat s Eye 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 Cat s Eye and Star Ruby chemical formula.

  • Chemical formula of Cat s Eye- BeAl 2 O 4
  • Chemical formula of Star Ruby- Al 2O 3Michael O’Donoghue , Gems, Sixth Edition (2006)

Cat s Eye and Star Ruby Specific Gravity

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