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Nepheline
Nepheline

Annabergite
Annabergite



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Nepheline
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Annabergite

Nepheline and Annabergite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.55-2.65
Subconchoidal, Conchoidal
[1010] Poor
5-6
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
 
Sectile
-
-
3.07
-
Perfect on {010}, indistinct on {100} and {102}
2
Ni3(AsO4)2•8(H2O)

Nepheline and Annabergite Chemical Formula

While comparing Nepheline and Annabergite 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 Nepheline and Annabergite chemical formula.

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Nepheline and Annabergite Specific Gravity

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