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Marcasite and Sodalite Physical Properties


Sodalite and Marcasite Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Soluble   

Durability
Not Available   
Not Available   

Specific Gravity
4.80-4.90   
2.15-2.40   

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

Cleavage
{010} Indistinct   
Poor on {110}   

Mohs Hardness
6-6.5   
5-6   

Chemical Composition
FeS 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   
Na8Al6Si6O24Cl2   

Optical Properties >>
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Marcasite and Sodalite Chemical Formula

While comparing Marcasite and Sodalite 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 Marcasite and Sodalite chemical formula.

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Marcasite and Sodalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Marcasite and Sodalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Marcasite and Sodalite Optical Properties during the identification of gemstone. Specific gravity of Marcasite is 2.15-2.40 whereas that of Sodalite is 2.15-2.40.

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