Gahnite and Wulfenite Physical Properties

Gahnite

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

4.00-4.626.50-7.00

1 7.18

1.5 Fracture

Conchoidal, Uneven

Irregular, Brittle, Conchoidal

1.6 Cleavage

Indistinct parting on [111]

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

1.7 Mohs Hardness

7.5-83

2 10

1.8 Chemical Composition

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

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

Gahnite and Wulfenite Chemical Formula

While comparing Gahnite 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 Gahnite and Wulfenite chemical formula.

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

Compare Blue Gemstones

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Gahnite Vs Howlite

Gahnite and Wulfenite Specific Gravity

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