Andradite and Pyromorphite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.70-4.10
6.5-7.1
Fracture
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)
Uneven, ConchoidalArthur Thomas, Brittle, Metallic
Cleavage
none
Imperfect- [10 1 1]
Mohs Hardness
6.5-7
3.5-4
Chemical Composition
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
Andradite and Pyromorphite Chemical Formula
While comparing Andradite and Pyromorphite 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 Andradite and Pyromorphite chemical formula.
- Chemical formula of Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
- Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
Andradite and Pyromorphite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Andradite and Pyromorphite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andradite and Pyromorphite Optical Properties during the identification of gemstone. Specific gravity of Andradite is 6.5-7.1 whereas that of Pyromorphite is 6.5-7.1.