Brookite and Axinite Physical Properties
Specific Gravity
3.87-4.14
3.26-3.36
Fracture
Subconchoidal, Conchoidal
Conchoidal
Cleavage
Poor on {120}, in traces on {001}
Good on {100}
Mohs Hardness
5.5-6
6.5-7
Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Ca,Fe,Mn,Mg) 3Al 2BSi 4O 15(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Brookite and Axinite Chemical Formula
While comparing Brookite and Axinite 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 Brookite and Axinite chemical formula.
- Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Axinite- (Ca,Fe,Mn,Mg) 3Al 2BSi 4O 15(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Brookite and Axinite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Brookite and Axinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brookite and Axinite Optical Properties during the identification of gemstone. Specific gravity of Brookite is 3.26-3.36 whereas that of Axinite is 3.26-3.36.