Gedrite and Spinel Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
none
Durability
Not Available
Not Available
Specific Gravity
3.15-3.259
3.64-3.66
Fracture
Not Available
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
None, but may exhibit slight parting
Chemical Composition
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
MgAl2O4
Gedrite and Spinel Chemical Formula
While comparing Gedrite and Spinel 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 Gedrite and Spinel chemical formula.
- Chemical formula of Gedrite- (Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Spinel- MgAl2O4
Gedrite and Spinel Specific Gravity
Another important criteria for qualitative analysis of gemstones is Gedrite and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gedrite and Spinel Optical Properties during the identification of gemstone. Specific gravity of Gedrite is 3.64-3.66 whereas that of Spinel is 3.64-3.66.