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Star Ruby
Star Ruby

Emerald
Emerald



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Star Ruby
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Emerald

Star Ruby and Emerald Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Hard
1.4 Specific Gravity
3.95-4.102.67-2.78
Amber
1 7.18
1.5 Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
1.6 Cleavage
Not Available
Imperfect on the [0001]
1.7 Mohs Hardness
Not Available7.5-8
Amber
2 10
1.8 Chemical Composition
Al 2O 3Michael O’Donoghue , Gems, Sixth Edition (2006)
Be3Al2SiO6

Star Ruby and Emerald Chemical Formula

While comparing Star Ruby and Emerald 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 Star Ruby and Emerald chemical formula.

  • Chemical formula of Star Ruby- Al 2O 3Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Emerald- Be3Al2SiO6

Star Ruby and Emerald Specific Gravity

Another important criteria for qualitative analysis of gemstones is Star Ruby and Emerald Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Star Ruby and Emerald Optical Properties during the identification of gemstone. Specific gravity of Star Ruby is 2.67-2.78 whereas that of Emerald is 2.67-2.78.