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Azurite and Tanzanite Physical Properties


Tanzanite and Azurite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Hard   

Specific Gravity
3.70-3.90   
3.35   

Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal   
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)   

Cleavage
Perfect on {011}, fair on {100}, poor on {110}   
Perfect {010}, imperfect {100}   

Mohs Hardness
3.5-4   
6.5-7   

Chemical Composition
Cu 3(OH) 2(CO 3) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   
Ca2Al3(SiO4)3(OH)   

Optical Properties >>
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Azurite and Tanzanite Chemical Formula

While comparing Azurite and Tanzanite 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 Azurite and Tanzanite chemical formula.

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Azurite and Tanzanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Azurite and Tanzanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Azurite and Tanzanite Optical Properties during the identification of gemstone. Specific gravity of Azurite is 3.35 whereas that of Tanzanite is 3.35.

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