Pyromorphite and Rutile Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Insoluble in acids
  
Durability
Not Available
  
Not Available
  
Specific Gravity
6.5-7.1
  
4.20-4.30
  
Fracture
Uneven, ConchoidalArthur Thomas, Brittle, Metallic
  
Uneven, ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
Imperfect- [10 1 1]
  
{110} good, 100 moderate, parting on {092} and {011}
  
Mohs Hardness
3.5-4
  
6-6.5
  
Chemical Composition
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
  
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Pyromorphite and Rutile Chemical Formula
While comparing Pyromorphite and Rutile 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 Rutile chemical formula.
- Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
- Chemical formula of Rutile- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Pyromorphite and Rutile Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pyromorphite and Rutile Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyromorphite and Rutile Optical Properties during the identification of gemstone. Specific gravity of Pyromorphite is 4.20-4.30 whereas that of Rutile is 4.20-4.30.