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Lapis lazuli
Lapis lazuli

White Opal
White Opal



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Lapis lazuli
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White Opal

Lapis lazuli and White Opal Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
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
 
-
-
-
1.98-2.50
Conchoidal
None
5.5-6.5
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Lapis lazuli and White Opal Chemical Formula

While comparing Lapis lazuli and White Opal 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 White Opal chemical formula.

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Lapis lazuli and White Opal Specific Gravity

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