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Emerald
Emerald

Celestine
Celestine



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Emerald
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Celestine

Emerald and Celestine Physical Properties

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Physical Properties

Tenacity

-
Brittle

Solubility

-
-

Durability

Hard
-

Specific Gravity

2.67-2.783.90-4.00
1 7.18
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Fracture

Uneven, ConchoidalWalter Schumann
Conchoidal

Cleavage

Imperfect on the [0001]
Perfect on {001}, good on {210}, poor on {010}

Mohs Hardness

7.5-83-3.5
2 10
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Chemical Composition

Be3Al2SiO6
SrSO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Emerald and Celestine Chemical Formula

While comparing Emerald and Celestine 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 Celestine chemical formula.

  • Chemical formula of Emerald- Be3Al2SiO6
  • Chemical formula of Celestine- SrSO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Emerald and Celestine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Emerald and Celestine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Emerald and Celestine Optical Properties during the identification of gemstone. Specific gravity of Emerald is 3.90-4.00 whereas that of Celestine is 3.90-4.00.