Pyromorphite and Poldervaartite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
6.5-7.1
2.91
Fracture
Uneven, ConchoidalArthur Thomas, Brittle, Metallic
Handbook of mineralogy (2001)
Cleavage
Imperfect- [10 1 1]
None
Mohs Hardness
3.5-4
Not Available
Chemical Composition
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
Pyromorphite and Poldervaartite Chemical Formula
While comparing Pyromorphite and Poldervaartite 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 Poldervaartite chemical formula.
- Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
- Chemical formula of Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
Pyromorphite and Poldervaartite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pyromorphite and Poldervaartite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyromorphite and Poldervaartite Optical Properties during the identification of gemstone. Specific gravity of Pyromorphite is 2.91 whereas that of Poldervaartite is 2.91.