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Lapis lazuli and Baryte Physical Properties


Baryte and Lapis lazuli Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Soluble   

Durability
Not Available   
Not Available   

Specific Gravity
2.50-3.00   
4.3-5   

Fracture
Uneven-Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)   
Irregular/uneven   

Cleavage
3,6   
Perfect cleavage parallel to base and prism faces: {001} Perfect, {210} Perfect, {010} Imperfect   

Mohs Hardness
5.5   
3-3.5   

Chemical Composition
The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)8Al6Si6O24(S,SO)4   
Not Available   

Optical Properties >>
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Lapis lazuli and Baryte Chemical Formula

While comparing Lapis lazuli and Baryte 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 Lapis lazuli and Baryte chemical formula.

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Lapis lazuli and Baryte Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lapis lazuli and Baryte Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lapis lazuli and Baryte Optical Properties during the identification of gemstone. Specific gravity of Lapis lazuli is 4.3-5 whereas that of Baryte is 4.3-5.

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