Franklinite and Goethite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
HCl soluble
Durability
Not Available
Not Available
Specific Gravity
5.05-5.22
4.27-4.29
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)
Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).
Cleavage
None
Perfect {010}
Mohs Hardness
5.5-6
5-5.5
Chemical Composition
(Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
FeO(OH)Arthur Thomas , Gemstones (2009)
Franklinite and Goethite Chemical Formula
While comparing Franklinite 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 Franklinite and Goethite chemical formula.
- Chemical formula of Franklinite- (Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)
Franklinite and Goethite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Franklinite and Goethite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Franklinite and Goethite Optical Properties during the identification of gemstone. Specific gravity of Franklinite is 4.27-4.29 whereas that of Goethite is 4.27-4.29.