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Chlorastrolite and Lazurite Physical Properties


Lazurite and Chlorastrolite Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Soluble   

Durability
Not Available   
Not Available   

Specific Gravity
3.1-3.5   
2.75   

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

Cleavage
Not Available   
Imperfect on {110}   

Mohs Hardness
5-6   
5.5   

Chemical Composition
Ca 2(Mg,Fe)Al 2(SiO 4)(Si 2O 7)(OH) 2 · H 2O)Arthur Thomas , Gemstones (2009)   
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.   

Optical Properties >>
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Chlorastrolite and Lazurite Chemical Formula

While comparing Chlorastrolite 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 Chlorastrolite and Lazurite chemical formula.

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Chlorastrolite and Lazurite Specific Gravity

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

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