Pyromorphite and Pollucite Physical Properties
Solubility
Not Available
Readily soluble in HF
Durability
Not Available
Not Available
Specific Gravity
6.5-7.1
2.86-2.94
Fracture
Uneven, ConchoidalArthur Thomas, Brittle, Metallic
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Cleavage
Imperfect- [10 1 1]
None observed
Mohs Hardness
3.5-4
6.5-7
Chemical Composition
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Pyromorphite and Pollucite Chemical Formula
While comparing Pyromorphite and Pollucite 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 Pollucite chemical formula.
- Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
- Chemical formula of Pollucite- (Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
Pyromorphite and Pollucite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pyromorphite and Pollucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyromorphite and Pollucite Optical Properties during the identification of gemstone. Specific gravity of Pyromorphite is 2.86-2.94 whereas that of Pollucite is 2.86-2.94.