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Emerald
Emerald

Sellaite
Sellaite



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Emerald
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Sellaite

Emerald and Sellaite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
Hard
2.67-2.78
Uneven, ConchoidalWalter Schumann
Imperfect on the [0001]
7.5-8
Be3Al2SiO6
 
Brittle
-
-
3.14-3.16
Conchoidal
Perfect on {010} and {110}
5-5.5
MgF 2Ulrich Henn and Claudio C.

Emerald and Sellaite Chemical Formula

While comparing Emerald and Sellaite 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 Sellaite chemical formula.

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Emerald and Sellaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Emerald and Sellaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Emerald Vs Sellaite during the identification of gemstone. Specific gravity of Emerald is whereas that of Sellaite is .