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Iolite and Calcite Physical Properties


Calcite and Iolite Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Soluble   

Durability
Not Available   
Not Available   

Specific Gravity
2.6-2.7   
2.67-2.73   

Fracture
Not Available   
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal   

Cleavage
3,1   
Perfect on [10 1 1] three directions with angle of 74° 55   

Mohs Hardness
7-7.5   
3   

Chemical Composition
Mg2Al4Si5O18   
CaCO 3Ulrich Henn and Claudio C.   

Optical Properties >>
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Iolite and Calcite Chemical Formula

While comparing Iolite and Calcite 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 Iolite and Calcite chemical formula.

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Iolite and Calcite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Iolite and Calcite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Calcite Optical Properties during the identification of gemstone. Specific gravity of Iolite is 2.67-2.73 whereas that of Calcite is 2.67-2.73.

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