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Uvite and Lapis lazuli Physical Properties


Lapis lazuli and Uvite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.97-3.14   
2.50-3.00   

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

Cleavage
{1011} Indistinct   
3,6   

Mohs Hardness
Not Available   
5.5   

Chemical Composition
Ca(Mg 3)MgAl 5(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)   
The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)8Al6Si6O24(S,SO)4   

Optical Properties >>
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Uvite and Lapis lazuli Chemical Formula

While comparing Uvite 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 Uvite and Lapis lazuli chemical formula.

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Uvite and Lapis lazuli Specific Gravity

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

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