Pyromorphite and Tanzanite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Hard
  
Specific Gravity
6.5-7.1
  
3.35
  
Fracture
Uneven, ConchoidalArthur Thomas, Brittle, Metallic
  
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
  
Cleavage
Imperfect- [10 1 1]
  
Perfect {010}, imperfect {100}
  
Mohs Hardness
3.5-4
  
6.5-7
  
Chemical Composition
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
  
Ca2Al3(SiO4)3(OH)
  
Pyromorphite and Tanzanite Chemical Formula
While comparing Pyromorphite and Tanzanite 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 Tanzanite chemical formula.
- Chemical formula of Pyromorphite- Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
- Chemical formula of Tanzanite- Ca2Al3(SiO4)3(OH)
Pyromorphite and Tanzanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pyromorphite and Tanzanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pyromorphite and Tanzanite Optical Properties during the identification of gemstone. Specific gravity of Pyromorphite is 3.35 whereas that of Tanzanite is 3.35.