Nickeline and Gahnite Physical Properties

Nickeline

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

Not Available4.00-4.62

1 7.18

1.5 Fracture

Conchoidal, Uneven

1.6 Cleavage

{1010} Imperfect, {0001} Imperfect

Indistinct parting on [111]

1.7 Mohs Hardness

5-5.57.5-8

2 10

1.8 Chemical Composition

Not Available

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

Nickeline and Gahnite Chemical Formula

While comparing Nickeline 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 Nickeline and Gahnite chemical formula.

Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Nickeline and Gahnite Specific Gravity

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