Rossmanite and Hibonite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Fracture
Brittle, Metallic
Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Cleavage
None
{0001} good, {10 1 0} 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)
(Ca,Ce)(Al,Ti,Mg)12O19
Rossmanite and Hibonite Chemical Formula
While comparing Rossmanite and Hibonite 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 Hibonite 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 Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19
Rossmanite and Hibonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Rossmanite and Hibonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rossmanite and Hibonite Optical Properties during the identification of gemstone. Specific gravity of Rossmanite is 3.84 whereas that of Hibonite is 3.84.