Wulfenite and Allanite Physical Properties

Wulfenite

Allanite

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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

6.50-7.003.40-4.20

1 7.18

1.5 Fracture

Irregular, Brittle, Conchoidal

Not Available

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

3Not Available

2 10

1.8 Chemical Composition

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

Not Available

Wulfenite and Allanite Chemical Formula

While comparing Wulfenite and Allanite 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 Allanite chemical formula.

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

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Wulfenite and Allanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Wulfenite and Allanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Wulfenite and Allanite Optical Properties during the identification of gemstone. Specific gravity of Wulfenite is 3.40-4.20 whereas that of Allanite is 3.40-4.20.