Gahnite and Villiaumite Physical Properties

Gahnite

Villiaumite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.00-4.622.79

1 7.18

1.5 Fracture

Conchoidal, Uneven

Brittle, Metallic

1.6 Cleavage

Indistinct parting on [111]

{100} Perfect, {010} Perfect, {001} Perfect

1.7 Mohs Hardness

7.5-82

2 10

1.8 Chemical Composition

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

NaFUlrich Henn and Claudio C.

Gahnite and Villiaumite Chemical Formula

While comparing Gahnite and Villiaumite 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 Villiaumite chemical formula.

Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Villiaumite- NaFUlrich Henn and Claudio C.

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Gahnite and Villiaumite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gahnite and Villiaumite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnite and Villiaumite Optical Properties during the identification of gemstone. Specific gravity of Gahnite is 2.79 whereas that of Villiaumite is 2.79.