Galena and Brookite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
6.23
3.87-4.14
Fracture
Subconchoidal, Brittle, Metallic
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
Cubic perfect on [001], parting on [111]
Poor on {120}, in traces on {001}
Mohs Hardness
2.5-2.75
5.5-6
Chemical Composition
PbS
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Galena and Brookite Chemical Formula
While comparing Galena 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 Galena and Brookite chemical formula.
- Chemical formula of Galena- PbS
- Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Galena and Brookite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Galena and Brookite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Galena and Brookite Optical Properties during the identification of gemstone. Specific gravity of Galena is 3.87-4.14 whereas that of Brookite is 3.87-4.14.