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Erythrite
Erythrite

Nepheline
Nepheline



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Erythrite
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Nepheline

Erythrite and Nepheline Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Sectile
-
-
3.06
Sectile
Perfect on {010}; poor on {100} and { 1 02}.
-9999
Co3(AsO4)2•8(H2O)
 
-
-
-
2.55-2.65
Subconchoidal, Conchoidal
[1010] Poor
5-6
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.

Erythrite and Nepheline Chemical Formula

While comparing Erythrite 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 Erythrite and Nepheline chemical formula.

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Erythrite and Nepheline Specific Gravity

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