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Gaylussite and Polyhalite Physical Properties


Polyhalite and Gaylussite Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
decomposes in water   
Soluble   

Durability
Not Available   
Not Available   

Specific Gravity
1.93-1.99   
2.78   

Fracture
Conchoidal, Conchoidal, Brittle   
Conchoidal, Brittle   

Cleavage
perfect [110]   
Perfect on {10 1 }; parting on {010}   

Mohs Hardness
2.5   
3.5   

Chemical Composition
Na2Ca(CO3)2•5(H2O)   
Not Available   

Optical Properties >>
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Gaylussite and Polyhalite Chemical Formula

While comparing Gaylussite 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 Gaylussite and Polyhalite chemical formula.

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Gaylussite and Polyhalite Specific Gravity

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

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Yellow Gemstones


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