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Amethyst and Lazurite Physical Properties


Lazurite and Amethyst Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
insoluble in common solvents   
Soluble   

Durability
Not Available   
Not Available   

Specific Gravity
2.65   
2.75   

Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)   
Uneven, UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle   

Cleavage
Indiscernible   
Imperfect on {110}   

Mohs Hardness
7   
5.5   

Chemical Composition
SiO2   
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.   

Optical Properties >>
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Amethyst and Lazurite Chemical Formula

While comparing Amethyst 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 Amethyst and Lazurite chemical formula.

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Amethyst and Lazurite Specific Gravity

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

Semi Precious

Semi Precious


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