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Calcite
Calcite

Nepheline
Nepheline



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Calcite
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Nepheline

Calcite and Nepheline Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
Soluble
-
2.67-2.73
Conchoidal
Perfect on [10 1 1] three directions with angle of 74° 55
3
CaCO 3Ulrich Henn and Claudio C.
 
-
-
-
2.55-2.65
Subconchoidal, Conchoidal
[1010] Poor
5-6
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.

Calcite and Nepheline Chemical Formula

While comparing Calcite and Nepheline 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 Nepheline chemical formula.

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Calcite and Nepheline Specific Gravity

Another important criteria for qualitative analysis of gemstones is Calcite and Nepheline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Calcite Vs Nepheline during the identification of gemstone. Specific gravity of Calcite is whereas that of Nepheline is .