Brookite and Pyromorphite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.87-4.14
6.5-7.1
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Uneven, ConchoidalArthur Thomas, Brittle, Metallic
Cleavage
Poor on {120}, in traces on {001}
Imperfect- [10 1 1]
Mohs Hardness
5.5-6
3.5-4
Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
Brookite and Pyromorphite Chemical Formula
While comparing Brookite and Pyromorphite 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 Pyromorphite chemical formula.
- Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
Brookite and Pyromorphite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Brookite and Pyromorphite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brookite and Pyromorphite Optical Properties during the identification of gemstone. Specific gravity of Brookite is 6.5-7.1 whereas that of Pyromorphite is 6.5-7.1.