Brookite and Poudretteite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.87-4.14
2.51-2.53
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Conchoidal, Splintery
Cleavage
Poor on {120}, in traces on {001}
None
Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)
Brookite and Poudretteite Chemical Formula
While comparing Brookite and Poudretteite 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 Poudretteite chemical formula.
- Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Poudretteite- KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)
Brookite and Poudretteite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Brookite and Poudretteite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brookite and Poudretteite Optical Properties during the identification of gemstone. Specific gravity of Brookite is 2.51-2.53 whereas that of Poudretteite is 2.51-2.53.