Mellite and Goethite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
HCl soluble
Durability
Not Available
Not Available
Specific Gravity
1.58-1.60
4.27-4.29
Fracture
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).
Cleavage
{011} Imperfect
Perfect {010}
Chemical Composition
Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.
FeO(OH)Arthur Thomas , Gemstones (2009)
Mellite and Goethite Chemical Formula
While comparing Mellite 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 Mellite and Goethite chemical formula.
- Chemical formula of Mellite- Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.
- Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)
Mellite and Goethite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Mellite and Goethite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Mellite and Goethite Optical Properties during the identification of gemstone. Specific gravity of Mellite is 4.27-4.29 whereas that of Goethite is 4.27-4.29.