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Anhydrite and Tanzanite Physical Properties


Tanzanite and Anhydrite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Hard   

Specific Gravity
2.90-2.98   
3.35   

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

Cleavage
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.   
Perfect {010}, imperfect {100}   

Mohs Hardness
3.5   
6.5-7   

Chemical Composition
CaSO 4Michael O’Donoghue , Gems, Sixth edition (2006) More from other references   
Ca2Al3(SiO4)3(OH)   

Optical Properties >>
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Anhydrite and Tanzanite Chemical Formula

While comparing Anhydrite 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 Anhydrite and Tanzanite chemical formula.

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Anhydrite and Tanzanite Specific Gravity

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

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