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Emerald
Emerald

Coral
Coral



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Emerald and Coral 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
Hard
Not Available
1.4 Specific Gravity
2.67-2.78
2.60-2.70
1.5 Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Irregular, Irregular, Gemstones of the world (2001)
1.6 Cleavage
Imperfect on the [0001]
Not Available
1.7 Mohs Hardness
7.5-8
3-4
1.8 Chemical Composition
Be3Al2SiO6
CaCO 3Ulrich Henn and Claudio C.

Emerald and Coral Chemical Formula

While comparing Emerald and Coral 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 Emerald and Coral chemical formula.

  • Chemical formula of Emerald- Be3Al2SiO6
  • Chemical formula of Coral- CaCO 3Ulrich Henn and Claudio C.

Emerald and Coral Specific Gravity

Another important criteria for qualitative analysis of gemstones is Emerald and Coral Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Emerald and Coral Optical Properties during the identification of gemstone. Specific gravity of Emerald is 2.60-2.70 whereas that of Coral is 2.60-2.70.