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Polyhalite and Omphacite Physical Properties


Omphacite and Polyhalite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Soluble   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.78   
3.16-3.43   

Fracture
Conchoidal, Brittle   
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal   

Cleavage
Perfect on {10 1 }; parting on {010}   
{110} Good, {110} Good   

Mohs Hardness
3.5   
5-6   

Chemical Composition
Not Available   
(Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)   

Optical Properties >>
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Polyhalite and Omphacite Chemical Formula

While comparing Polyhalite and Omphacite 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 Polyhalite and Omphacite chemical formula.

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Polyhalite and Omphacite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Polyhalite and Omphacite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Polyhalite and Omphacite Optical Properties during the identification of gemstone. Specific gravity of Polyhalite is 3.16-3.43 whereas that of Omphacite is 3.16-3.43.

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