Plumbogummite and Nepheline Physical Properties

Plumbogummite

Nepheline

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.0142.55-2.65

1 7.18

1.5 Fracture

Uneven, Conchoidal

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

1.6 Cleavage

None

[1010] Poor

1.7 Mohs Hardness

4-55-6

2 10

1.8 Chemical Composition

Not Available

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

Plumbogummite and Nepheline Chemical Formula

While comparing Plumbogummite 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 Plumbogummite and Nepheline chemical formula.

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

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Plumbogummite and Nepheline Specific Gravity

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