Wulfenite and Gahnite Physical Properties

Wulfenite

Gahnite

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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

6.50-7.004.00-4.62

1 7.18

1.5 Fracture

Irregular, Brittle, Conchoidal

Conchoidal, Uneven

1.6 Cleavage

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

Indistinct parting on [111]

1.7 Mohs Hardness

37.5-8

2 10

1.8 Chemical Composition

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

ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Wulfenite and Gahnite Chemical Formula

While comparing Wulfenite and Gahnite 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 Gahnite chemical formula.

Chemical formula of Wulfenite- PbMoO 4Walter Schumann , Gemstones of the world (2001)
Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Wulfenite and Gahnite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Wulfenite and Gahnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Wulfenite and Gahnite Optical Properties during the identification of gemstone. Specific gravity of Wulfenite is 4.00-4.62 whereas that of Gahnite is 4.00-4.62.