Pyromorphite and Albite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
6.5-7.1
  
2.60-2.65
  
Fracture
Uneven, ConchoidalArthur Thomas, Brittle, Metallic
  
Uneven, Uneven, Gems, Sixth Edition (2006), Uneven, Conchoidal
  
Cleavage
Imperfect- [10 1 1]
  
Perfect on {001}, very good on {010}, imperfect on {110}
  
Mohs Hardness
3.5-4
  
6-6.5
  
Chemical Composition
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
  
NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Pyromorphite and Albite Chemical Formula
While comparing Pyromorphite and Albite 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 Albite chemical formula.
- Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
- Chemical formula of Albite- NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Pyromorphite and Albite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pyromorphite and Albite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyromorphite and Albite Optical Properties during the identification of gemstone. Specific gravity of Pyromorphite is 2.60-2.65 whereas that of Albite is 2.60-2.65.