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Mimetite and Purpurite Physical Properties


Purpurite and Mimetite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
7.10   
3.2-3.4   

Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle   
Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle   

Cleavage
[10 1 1] Imperfect   
[100] [001] perfect   

Mohs Hardness
3.5   
4-4.5   

Chemical Composition
Pb 5(AsO 4) 3ClMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references   
MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references   

Optical Properties >>
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Mimetite and Purpurite Chemical Formula

While comparing Mimetite 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 Mimetite and Purpurite chemical formula.

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Mimetite and Purpurite Specific Gravity

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

Red Gemstones

Red Gemstones


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