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Stibiotantalite and Lapis lazuli Physical Properties


Lapis lazuli and Stibiotantalite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
Not Available   
2.50-3.00   

Fracture
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal   
Uneven-Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)   

Cleavage
{???} Perfect   
3,6   

Mohs Hardness
5.5-6   
5.5   

Chemical Composition
SbTaO 4Ulrich Henn and Claudio C.   
The chief constituent Lapis Lazuli is Lazurite, with the following chemical formula: (Na,Ca)8Al6Si6O24(S,SO)4   

Optical Properties >>
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Stibiotantalite and Lapis lazuli Chemical Formula

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

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Stibiotantalite and Lapis lazuli Specific Gravity

Another important criteria for qualitative analysis of gemstones is Stibiotantalite and Lapis lazuli Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Stibiotantalite and Lapis lazuli Optical Properties during the identification of gemstone. Specific gravity of Stibiotantalite is 2.50-3.00 whereas that of Lapis lazuli is 2.50-3.00.

Red Gemstones

Red Gemstones


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