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Shattuckite and Lapis lazuli Physical Properties


Lapis lazuli and Shattuckite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
3.80-4.15   
2.50-3.00   

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

Cleavage
perfect along [010] and [100]   
3,6   

Mohs Hardness
3.5-4   
5.5   

Chemical Composition
Cu 5(SiO 3) 4(OH) 2Michael 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   

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Shattuckite and Lapis lazuli Chemical Formula

While comparing Shattuckite 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 Shattuckite and Lapis lazuli chemical formula.

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Shattuckite and Lapis lazuli Specific Gravity

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

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