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Charoite and Lazurite Physical Properties


Lazurite and Charoite Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Soluble   

Durability
Not Available   
Not Available   

Specific Gravity
2.54-2.78   
2.75   

Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)   
Uneven, UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle   

Cleavage
Good in three directions   
Imperfect on {110}   

Mohs Hardness
5-6   
5.5   

Chemical Composition
K(Ca,Na) 2Si 4O 10(OH,F) · H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references   
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.   

Optical Properties >>
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Charoite and Lazurite Chemical Formula

While comparing Charoite 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 Charoite and Lazurite chemical formula.

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Charoite and Lazurite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Charoite and Lazurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Charoite and Lazurite Optical Properties during the identification of gemstone. Specific gravity of Charoite is 2.75 whereas that of Lazurite is 2.75.

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