Pyromorphite and Prase Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
6.5-7.1
2.64-2.69
Fracture
Uneven, ConchoidalArthur Thomas, Brittle, Metallic
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006)
Cleavage
Imperfect- [10 1 1]
Not Available
Chemical Composition
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Pyromorphite and Prase Chemical Formula
While comparing Pyromorphite and Prase 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 Pyromorphite and Prase chemical formula.
- Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
- Chemical formula of Prase- SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Pyromorphite and Prase Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pyromorphite and Prase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyromorphite and Prase Optical Properties during the identification of gemstone. Specific gravity of Pyromorphite is 2.64-2.69 whereas that of Prase is 2.64-2.69.