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Dumortierite
Dumortierite

Lazurite
Lazurite



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Dumortierite
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Lazurite

Dumortierite and Lazurite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.26-3.41
Fibrous, ConchoidalWalter Schumann
Distinct on {100}, poor on {110}; parting on {001}
7-8.5
AlAl6O3BSi3O18
 
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.

Dumortierite and Lazurite Chemical Formula

While comparing Dumortierite 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 Dumortierite and Lazurite chemical formula.

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Dumortierite and Lazurite Specific Gravity

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