Rossmanite and Gahnospinel Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3
3.65-4.55
Fracture
Brittle, Metallic
ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
None
None, but may exhibit slight parting
Mohs Hardness
Not Available
7.5-8
Chemical Composition
◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
Rossmanite and Gahnospinel Chemical Formula
While comparing Rossmanite and Gahnospinel 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 Rossmanite and Gahnospinel chemical formula.
- Chemical formula of Rossmanite- ◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
- Chemical formula of Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
Rossmanite and Gahnospinel Specific Gravity
Another important criteria for qualitative analysis of gemstones is Rossmanite and Gahnospinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rossmanite and Gahnospinel Optical Properties during the identification of gemstone. Specific gravity of Rossmanite is 3.65-4.55 whereas that of Gahnospinel is 3.65-4.55.