Zincite and Nepheline Physical Properties

Zincite

Nepheline

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

5.50-5.902.55-2.65

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

On {10 1 0}, perfect; parting on {000 1 }

[1010] Poor

1.7 Mohs Hardness

45-6

2 10

1.8 Chemical Composition

(Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)

Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.

Zincite and Nepheline Chemical Formula

While comparing Zincite 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 Zincite and Nepheline chemical formula.

Chemical formula of Zincite- (Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.

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Zincite and Nepheline Specific Gravity

Another important criteria for qualitative analysis of gemstones is Zincite and Nepheline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zincite and Nepheline Optical Properties during the identification of gemstone. Specific gravity of Zincite is 2.55-2.65 whereas that of Nepheline is 2.55-2.65.