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Omphacite and Purpurite Physical Properties


Purpurite and Omphacite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.16-3.43   
3.2-3.4   

Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal   
Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle   

Cleavage
{110} Good, {110} Good   
[100] [001] perfect   

Mohs Hardness
5-6   
4-4.5   

Chemical Composition
(Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)   
MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references   

Optical Properties >>
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Omphacite and Purpurite Chemical Formula

While comparing Omphacite and Purpurite 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 Omphacite and Purpurite chemical formula.

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Omphacite and Purpurite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Omphacite and Purpurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Omphacite and Purpurite Optical Properties during the identification of gemstone. Specific gravity of Omphacite is 3.2-3.4 whereas that of Purpurite is 3.2-3.4.

Green Gemstones

Green Gemstones


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