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Chrysoberyl
Chrysoberyl

Star Ruby
Star Ruby



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Chrysoberyl
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Star Ruby

Chrysoberyl and Star Ruby Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

3.69-3.813.95-4.10
1 7.18
👆🏻

Fracture

Uneven, Conchoidal to uneven, ConchoidalWalter Schumann
Uneven

Cleavage

Distinct on {110}, imperfect on {010}, poor on {001}
None

Mohs Hardness

8.5-9999
2 10
👆🏻

Chemical Composition

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

Chrysoberyl and Star Ruby Chemical Formula

While comparing Chrysoberyl 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 Chrysoberyl and Star Ruby chemical formula.

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

Chrysoberyl and Star Ruby Specific Gravity

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