Mimetite and Goethite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
HCl soluble
Durability
Not Available
Not Available
Specific Gravity
7.10
4.27-4.29
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).
Cleavage
[10 1 1] Imperfect
Perfect {010}
Chemical Composition
Pb 5(AsO 4) 3ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
FeO(OH)Arthur Thomas , Gemstones (2009)
Mimetite and Goethite Chemical Formula
While comparing Mimetite 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 Mimetite and Goethite chemical formula.
- Chemical formula of Mimetite- Pb 5(AsO 4) 3ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)
Mimetite and Goethite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Mimetite and Goethite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Mimetite and Goethite Optical Properties during the identification of gemstone. Specific gravity of Mimetite is 4.27-4.29 whereas that of Goethite is 4.27-4.29.