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Crystal Opal
Crystal Opal

Lazurite
Lazurite



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Crystal Opal
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Lazurite

Crystal Opal and Lazurite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
1.97-2.22
Conchoidal
None
5.5-6.5
SiO 2 + H 2OUlrich Henn and Claudio C.
 
Brittle
Soluble
-
2.75
Uneven, Conchoidal
Imperfect on {110}
5.5
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.

Crystal Opal and Lazurite Chemical Formula

While comparing Crystal Opal and Lazurite 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 Crystal Opal and Lazurite chemical formula.

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Crystal Opal and Lazurite Specific Gravity

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