Pyromorphite and Apophyllite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
6.5-7.1
2.30-2.50
Fracture
Uneven, ConchoidalArthur Thomas, Brittle, Metallic
Uneven, UnevenArthur Thomas, Gemstones (2009)
Cleavage
Imperfect- [10 1 1]
Perfect on (001)
Mohs Hardness
3.5-4
4.5-5
Chemical Composition
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
Pyromorphite and Apophyllite Chemical Formula
While comparing Pyromorphite and Apophyllite 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 Apophyllite chemical formula.
- Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
- Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
Pyromorphite and Apophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pyromorphite and Apophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyromorphite and Apophyllite Optical Properties during the identification of gemstone. Specific gravity of Pyromorphite is 2.30-2.50 whereas that of Apophyllite is 2.30-2.50.