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Andesine and Lapis lazuli Physical Properties


Lapis lazuli and Andesine Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.65-2.69   
2.50-3.00   

Fracture
Uneven, Uneven, Conchoidal, Uneven, Gems, Sixth Edition (2006)   
Uneven-Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)   

Cleavage
Perfect on {001}, good on {010}   
3,6   

Mohs Hardness
6-6.5   
5.5   

Chemical Composition
(Na,Ca)Al1-2Si3-2O8   
The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)8Al6Si6O24(S,SO)4   

Optical Properties >>
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Andesine and Lapis lazuli Chemical Formula

While comparing Andesine 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 Andesine and Lapis lazuli chemical formula.

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Andesine and Lapis lazuli Specific Gravity

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

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