Spinel and Franklinite Physical Properties
Tenacity
Not Available
Not Available
Solubility
none
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.64-3.66
5.05-5.22
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)
Cleavage
None, but may exhibit slight parting
None
Chemical Composition
MgAl2O4
(Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Spinel and Franklinite Chemical Formula
While comparing Spinel and Franklinite 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 Spinel and Franklinite chemical formula.
- Chemical formula of Spinel- MgAl2O4
- Chemical formula of Franklinite- (Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Spinel and Franklinite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Spinel and Franklinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Franklinite Optical Properties during the identification of gemstone. Specific gravity of Spinel is 5.05-5.22 whereas that of Franklinite is 5.05-5.22.