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Bytownite and Polyhalite Physical Properties


Polyhalite and Bytownite Physical Properties


Physical Properties

Tenacity
Brittle   
Brittle   

Solubility
Not Available   
Soluble   

Durability
Not Available   
Not Available   

Specific Gravity
2.72-2.75   
2.78   

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

Cleavage
Perfect on [001], good on [010], imperfect on [110]   
Perfect on {10 1 }; parting on {010}   

Mohs Hardness
6-6.5   
3.5   

Chemical Composition
Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)   
Not Available   

Optical Properties >>
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Bytownite and Polyhalite Chemical Formula

While comparing Bytownite and Polyhalite 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 Bytownite and Polyhalite chemical formula.

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Bytownite and Polyhalite Specific Gravity

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

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