Nepheline and Pietersite Physical Properties

Nepheline

Pietersite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.55-2.65Not Available

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

[1010] Poor

Not Available

1.7 Mohs Hardness

5-65

2 10

1.8 Chemical Composition

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

Not Available

Nepheline and Pietersite Chemical Formula

While comparing Nepheline and Pietersite 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 Pietersite chemical formula.

Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.

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Nepheline and Pietersite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Nepheline and Pietersite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nepheline and Pietersite Optical Properties during the identification of gemstone. Specific gravity of Nepheline is Not Available whereas that of Pietersite is Not Available.