Pyromorphite and Simpsonite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
6.5-7.1
Not Available
Fracture
Uneven, ConchoidalArthur Thomas, Brittle, Metallic
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Cleavage
Imperfect- [10 1 1]
None
Mohs Hardness
3.5-4
7-7.5
Chemical Composition
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.
Pyromorphite and Simpsonite Chemical Formula
While comparing Pyromorphite and Simpsonite 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 Simpsonite chemical formula.
- Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
- Chemical formula of Simpsonite- Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.
Pyromorphite and Simpsonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pyromorphite and Simpsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyromorphite and Simpsonite Optical Properties during the identification of gemstone. Specific gravity of Pyromorphite is Not Available whereas that of Simpsonite is Not Available.