Nuummite and Wulfenite Physical Properties

Nuummite

Wulfenite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.18-3.376.50-7.00

1 7.18

1.5 Fracture

Conchoidal

Irregular, Brittle, Conchoidal

1.6 Cleavage

Perfect on 210

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

1.7 Mohs Hardness

5.5-63

2 10

1.8 Chemical Composition

Not Available

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

Nuummite and Wulfenite Chemical Formula

While comparing Nuummite and Wulfenite 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 Nuummite and Wulfenite chemical formula.

Chemical formula of Wulfenite- PbMoO 4Walter Schumann , Gemstones of the world (2001)

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Nuummite and Wulfenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Nuummite and Wulfenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nuummite and Wulfenite Optical Properties during the identification of gemstone. Specific gravity of Nuummite is 6.50-7.00 whereas that of Wulfenite is 6.50-7.00.