Pyromorphite and Cordierite Iolite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
6.5-7.1
2.56-2.66
Fracture
Uneven, ConchoidalArthur Thomas, Brittle, Metallic
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Cleavage
Imperfect- [10 1 1]
Not Available
Mohs Hardness
3.5-4
7-7.5
Chemical Composition
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
Pyromorphite and Cordierite Iolite Chemical Formula
While comparing Pyromorphite and Cordierite Iolite 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 Cordierite Iolite chemical formula.
- Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
- Chemical formula of Cordierite Iolite- Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
Pyromorphite and Cordierite Iolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pyromorphite and Cordierite Iolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyromorphite and Cordierite Iolite Optical Properties during the identification of gemstone. Specific gravity of Pyromorphite is 2.56-2.66 whereas that of Cordierite Iolite is 2.56-2.66.