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Goethite
Goethite

Cymophane
Cymophane



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Goethite
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Goethite and Cymophane 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
3.69-3.81
1.5 Fracture
Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).
Not Available
1.6 Cleavage
Perfect {010}
Not Available
1.7 Mohs Hardness
5-5.5
8.5
1.8 Chemical Composition
FeO(OH)Arthur Thomas , Gemstones (2009)
BeAl 2O 4Arthur Thomas , Gemstones (2009)

Goethite and Cymophane Chemical Formula

While comparing Goethite and Cymophane 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 Cymophane chemical formula.

  • Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)
  • Chemical formula of Cymophane- BeAl 2O 4Arthur Thomas , Gemstones (2009)

Goethite and Cymophane Specific Gravity

Another important criteria for qualitative analysis of gemstones is Goethite and Cymophane Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Goethite and Cymophane Optical Properties during the identification of gemstone. Specific gravity of Goethite is 3.69-3.81 whereas that of Cymophane is 3.69-3.81.