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Fuchsite
Fuchsite

Gahnite
Gahnite



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Fuchsite
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Gahnite

Fuchsite and Gahnite Physical Properties

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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
2.77-2.884.00-4.62
Amber
1 7.18
1.5 Fracture
Uneven
Conchoidal, Uneven
1.6 Cleavage
Perfect basal
Indistinct parting on [111]
1.7 Mohs Hardness
2.57.5-8
Amber
2 10
1.8 Chemical Composition
K(Al,Cr) 3Si 3O 10(OH) 2Gemdat.org , Management Team (2012)
ZnAl 2O 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Fuchsite and Gahnite Chemical Formula

While comparing Fuchsite 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 Fuchsite and Gahnite chemical formula.

  • Chemical formula of Fuchsite- K(Al,Cr) 3Si 3O 10(OH) 2Gemdat.org , Management Team (2012)
  • Chemical formula of Gahnite- ZnAl 2O 4Michael O’Donoghue , Gems, Sixth Edition (2006)

Fuchsite and Gahnite Specific Gravity

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