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Leucite and Lapis lazuli Physical Properties


Lapis lazuli and Leucite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.45-2.50   
2.50-3.00   

Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle   
Uneven-Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)   

Cleavage
Poor on {110}   
3,6   

Mohs Hardness
5.5-6   
5.5   

Chemical Composition
KAlSi 2O 6Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   
The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)8Al6Si6O24(S,SO)4   

Optical Properties >>
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Leucite and Lapis lazuli Chemical Formula

While comparing Leucite and Lapis lazuli 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 Leucite and Lapis lazuli chemical formula.

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Leucite and Lapis lazuli Specific Gravity

Another important criteria for qualitative analysis of gemstones is Leucite and Lapis lazuli Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Leucite and Lapis lazuli Optical Properties during the identification of gemstone. Specific gravity of Leucite is 2.50-3.00 whereas that of Lapis lazuli is 2.50-3.00.

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