Hematite and Goethite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
HCl soluble
Durability
Not Available
Not Available
Specific Gravity
5.00-5.30
4.27-4.29
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).
Cleavage
None, may show partings on {0001} and {10 1 1}
Perfect {010}
Chemical Composition
Fe 2O 3Arthur Thomas , Gemstones (2009)
FeO(OH)Arthur Thomas , Gemstones (2009)
Hematite and Goethite Chemical Formula
While comparing Hematite and Goethite 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 Hematite and Goethite chemical formula.
- Chemical formula of Hematite- Fe 2O 3Arthur Thomas , Gemstones (2009)
- Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)
Hematite and Goethite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hematite and Goethite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hematite and Goethite Optical Properties during the identification of gemstone. Specific gravity of Hematite is 4.27-4.29 whereas that of Goethite is 4.27-4.29.