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Calcite and Variscite Physical Properties


Variscite and Calcite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Soluble   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.67-2.73   
2.42-2.58   

Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal   
Conchoidal, Splintery, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle   

Cleavage
Perfect on [10 1 1] three directions with angle of 74° 55   
[010] perfect   

Mohs Hardness
3   
4-5   

Chemical Composition
CaCO 3Ulrich Henn and Claudio C.   
AlPO4 · 2(H2O)   

Optical Properties >>
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Calcite and Variscite Chemical Formula

While comparing Calcite and Variscite 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 Calcite and Variscite chemical formula.

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Calcite and Variscite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Calcite and Variscite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Calcite and Variscite Optical Properties during the identification of gemstone. Specific gravity of Calcite is 2.42-2.58 whereas that of Variscite is 2.42-2.58.

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