Pyromorphite and Oligoclase Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
6.5-7.1
2.62-2.67
Fracture
Uneven, ConchoidalArthur Thomas, Brittle, Metallic
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven
Cleavage
Imperfect- [10 1 1]
From the Greek, oligos and kasein, little cleavage.
Mohs Hardness
3.5-4
6-6.5
Chemical Composition
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Pyromorphite and Oligoclase Chemical Formula
While comparing Pyromorphite and Oligoclase 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 Oligoclase chemical formula.
- Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
- Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Pyromorphite and Oligoclase Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pyromorphite and Oligoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyromorphite and Oligoclase Optical Properties during the identification of gemstone. Specific gravity of Pyromorphite is 2.62-2.67 whereas that of Oligoclase is 2.62-2.67.