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Galena and Cordierite Iolite Physical Properties


Cordierite Iolite and Galena Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
6.23   
2.56-2.66   

Fracture
Subconchoidal, Brittle, Metallic   
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)   

Cleavage
Cubic perfect on [001], parting on [111]   
Not Available   

Mohs Hardness
2.5-2.75   
7-7.5   

Chemical Composition
PbS   
Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.   

Optical Properties >>
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Galena and Cordierite Iolite Chemical Formula

While comparing Galena 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 Galena and Cordierite Iolite chemical formula.

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Galena and Cordierite Iolite Specific Gravity

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

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