Goethite and Covellite Physical Properties
Tenacity
Not Available
Flexible
Solubility
HCl soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.27-4.29
4.6-4.76
Fracture
Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Cleavage
Perfect {010}
Perfect on {0001}
Mohs Hardness
5-5.5
Not Available
Chemical Composition
FeO(OH)Arthur Thomas , Gemstones (2009)
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Goethite and Covellite Chemical Formula
While comparing Goethite and Covellite 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 Covellite chemical formula.
- Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)
- Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Goethite and Covellite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Goethite and Covellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Goethite and Covellite Optical Properties during the identification of gemstone. Specific gravity of Goethite is 4.6-4.76 whereas that of Covellite is 4.6-4.76.