Wulfenite and Nepheline Physical Properties

Wulfenite

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

6.50-7.002.55-2.65

1 7.18

1.5 Fracture

Irregular, Brittle, Conchoidal

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

1.6 Cleavage

On {011}, distinct; on {001}, {013}, indistinct

[1010] Poor

1.7 Mohs Hardness

35-6

2 10

1.8 Chemical Composition

PbMoO 4Walter Schumann , Gemstones of the world (2001)

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

Wulfenite and Nepheline Chemical Formula

While comparing Wulfenite 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 Wulfenite and Nepheline chemical formula.

Chemical formula of Wulfenite- PbMoO 4Walter Schumann , Gemstones of the world (2001)
Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.

Compare Red Gemstones

Wulfenite Vs Garnet Malaia

Wulfenite Vs Hessonite Garnet

Wulfenite Vs Opal Australia

Wulfenite and Nepheline Specific Gravity

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