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Goethite
Goethite

Tigers Eye
Tigers Eye



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Goethite
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Goethite and Tigers Eye Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
HCl soluble
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
4.27-4.29
2.58-2.64
1.5 Fracture
Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).
Gems, Sixth Edition (2006)
1.6 Cleavage
Perfect {010}
Indiscernible
1.7 Mohs Hardness
5-5.5
6.5-7
1.8 Chemical Composition
FeO(OH)Arthur Thomas , Gemstones (2009)
SiO2

Goethite and Tigers Eye Chemical Formula

While comparing Goethite and Tigers Eye 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 Goethite and Tigers Eye chemical formula.

  • Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)
  • Chemical formula of Tigers Eye- SiO2

Goethite and Tigers Eye Specific Gravity

Another important criteria for qualitative analysis of gemstones is Goethite and Tigers Eye Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Goethite and Tigers Eye Optical Properties during the identification of gemstone. Specific gravity of Goethite is 2.58-2.64 whereas that of Tigers Eye is 2.58-2.64.