Pyromorphite and Periclase Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
6.5-7.1
3.7-3.9
Fracture
Uneven, ConchoidalArthur Thomas, Brittle, Metallic
Conchoidal, Brittle
Cleavage
Imperfect- [10 1 1]
{001} perfect; {111} imperfect, may exhibit parting on , {011}
Mohs Hardness
3.5-4
5.5-6
Chemical Composition
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
MgOMichael OâDonoghue , Gems, Sixth Edition (2006)
Pyromorphite and Periclase Chemical Formula
While comparing Pyromorphite and Periclase 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 Periclase chemical formula.
- Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
- Chemical formula of Periclase- MgOMichael OâDonoghue , Gems, Sixth Edition (2006)
Pyromorphite and Periclase Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pyromorphite and Periclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyromorphite and Periclase Optical Properties during the identification of gemstone. Specific gravity of Pyromorphite is 3.7-3.9 whereas that of Periclase is 3.7-3.9.