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Pietersite and Lapis lazuli Physical Properties


Lapis lazuli and Pietersite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
Not Available   
2.50-3.00   

Fracture
Not Available   
Uneven-Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)   

Cleavage
Not Available   
3,6   

Mohs Hardness
5   
5.5   

Chemical Composition
Not Available   
The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)8Al6Si6O24(S,SO)4   

Optical Properties >>
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Pietersite and Lapis lazuli Chemical Formula

While comparing Pietersite 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 Pietersite and Lapis lazuli chemical formula.

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Pietersite and Lapis lazuli Specific Gravity

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

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