Apophyllite and Azurite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.30-2.50
  
3.70-3.90
  
Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009)
  
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
  
Cleavage
Perfect on (001)
  
Perfect on {011}, fair on {100}, poor on {110}
  
Mohs Hardness
4.5-5
  
3.5-4
  
Chemical Composition
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
  
Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Apophyllite and Azurite Chemical Formula
While comparing Apophyllite and Azurite 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 Apophyllite and Azurite chemical formula.
- Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
- Chemical formula of Azurite- Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Apophyllite and Azurite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Apophyllite and Azurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite and Azurite Optical Properties during the identification of gemstone. Specific gravity of Apophyllite is 3.70-3.90 whereas that of Azurite is 3.70-3.90.