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Lapis lazuli
Lapis lazuli

Charoite
Charoite



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Lapis lazuli
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Charoite

Lapis lazuli and Charoite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
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-
-
2.50-3.00
Uneven-Conchoidal, ConchoidalWalter Schumann
3,6
5.5
The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)8Al6Si6O24(S,SO)4
 
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-
-
2.54-2.78
Conchoidal
Good in three directions
5-6
K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Lapis lazuli and Charoite Chemical Formula

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

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Lapis lazuli and Charoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lapis lazuli and Charoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lapis lazuli Vs Charoite during the identification of gemstone. Specific gravity of Lapis lazuli is whereas that of Charoite is .