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Apophyllite KF and Bytownite Physical Properties


Bytownite and Apophyllite KF Physical Properties


Physical Properties

Tenacity
Brittle   
Brittle   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.33-2.37   
2.72-2.75   

Fracture
Uneven, Brittle, Uneven, Brittle, Uneven   
Uneven, Uneven, Gems, Sixth Edition (2006)   

Cleavage
Perfect on {001}, imperfect on {110}   
Perfect on [001], good on [010], imperfect on [110]   

Mohs Hardness
4.5-5   
6-6.5   

Chemical Composition
(K,Na)Ca4Si8O20(F,OH)•8(H2O)   
Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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Apophyllite KF and Bytownite Chemical Formula

While comparing Apophyllite KF and Bytownite 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 Apophyllite KF and Bytownite chemical formula.

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Apophyllite KF and Bytownite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Apophyllite KF and Bytownite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite KF and Bytownite Optical Properties during the identification of gemstone. Specific gravity of Apophyllite KF is 2.72-2.75 whereas that of Bytownite is 2.72-2.75.

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