Hibonite and Star Ruby Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.84
3.95-4.10
Fracture
Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Uneven, Uneven, Gems, Sixth Edition (2006)
Cleavage
{0001} good, {10 1 0} parting
Not Available
Mohs Hardness
7.5-8
Not Available
Chemical Composition
(Ca,Ce)(Al,Ti,Mg)12O19
Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Hibonite and Star Ruby Chemical Formula
While comparing Hibonite and Star Ruby 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 Hibonite and Star Ruby chemical formula.
- Chemical formula of Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19
- Chemical formula of Star Ruby- Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Hibonite and Star Ruby Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hibonite and Star Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hibonite and Star Ruby Optical Properties during the identification of gemstone. Specific gravity of Hibonite is 3.95-4.10 whereas that of Star Ruby is 3.95-4.10.