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Emerald and Apophyllite KF Physical Properties


Apophyllite KF and Emerald Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Not Available   

Durability
Hard   
Not Available   

Specific Gravity
2.67-2.78   
2.33-2.37   

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

Cleavage
Imperfect on the [0001]   
Perfect on {001}, imperfect on {110}   

Mohs Hardness
7.5-8   
4.5-5   

Chemical Composition
Be3Al2SiO6   
(K,Na)Ca4Si8O20(F,OH)•8(H2O)   

Optical Properties >>
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Emerald and Apophyllite KF Chemical Formula

While comparing Emerald and Apophyllite KF 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 Apophyllite KF chemical formula.

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Emerald and Apophyllite KF Specific Gravity

Another important criteria for qualitative analysis of gemstones is Emerald and Apophyllite KF Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Emerald and Apophyllite KF Optical Properties during the identification of gemstone. Specific gravity of Emerald is 2.33-2.37 whereas that of Apophyllite KF is 2.33-2.37.

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