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Jet
Jet

Gahnite
Gahnite



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Jet
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Gahnite

Jet and Gahnite Physical Properties

Jet
Jet
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1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.19-1.354.00-4.62
Amber
1 7.18
1.5 Fracture
ConchoidalWalter Schumann, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
Conchoidal, Uneven
1.6 Cleavage
Not Available
Indistinct parting on [111]
1.7 Mohs Hardness
2.5-47.5-8
Amber
2 10
1.8 Chemical Composition
Not Available
ZnAl 2O 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Jet and Gahnite Chemical Formula

While comparing Jet 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 Jet and Gahnite chemical formula.

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

Jet and Gahnite Specific Gravity

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