Hibonite and Brookite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.84
3.87-4.14
Fracture
Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
{0001} good, {10 1 0} parting
Poor on {120}, in traces on {001}
Mohs Hardness
7.5-8
5.5-6
Chemical Composition
(Ca,Ce)(Al,Ti,Mg)12O19
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Hibonite and Brookite Chemical Formula
While comparing Hibonite and Brookite 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 Brookite chemical formula.
- Chemical formula of Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19
- Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Hibonite and Brookite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hibonite and Brookite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hibonite and Brookite Optical Properties during the identification of gemstone. Specific gravity of Hibonite is 3.87-4.14 whereas that of Brookite is 3.87-4.14.