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Hardystonite and Emerald Physical Properties


Emerald and Hardystonite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Hard   

Specific Gravity
3.396-3.443   
2.67-2.78   

Fracture
Brittle, Metallic   
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)   

Cleavage
[001] good, [100] and [110] fair   
Imperfect on the [0001]   

Mohs Hardness
3-4   
7.5-8   

Chemical Composition
Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)   
Be3Al2SiO6   

Optical Properties >>
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Hardystonite and Emerald Chemical Formula

While comparing Hardystonite 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 Hardystonite and Emerald chemical formula.

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Hardystonite and Emerald Specific Gravity

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

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