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Anhydrite and Cordierite Iolite Physical Properties


Cordierite Iolite and Anhydrite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.90-2.98   
2.56-2.66   

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

Cleavage
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.   
Not Available   

Mohs Hardness
3.5   
7-7.5   

Chemical Composition
CaSO 4Michael O’Donoghue , Gems, Sixth edition (2006) More from other references   
Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.   

Optical Properties >>
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Anhydrite and Cordierite Iolite Chemical Formula

While comparing Anhydrite and Cordierite Iolite 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 Cordierite Iolite chemical formula.

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Anhydrite and Cordierite Iolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anhydrite and Cordierite Iolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anhydrite and Cordierite Iolite Optical Properties during the identification of gemstone. Specific gravity of Anhydrite is 2.56-2.66 whereas that of Cordierite Iolite is 2.56-2.66.

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