Allanite and Cuprite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.40-4.20
  
5.85-6.15
  
Fracture
Not Available
  
Conchoidal, Metallic, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
  
Cleavage
Not Available
  
Fair in four directions forming octahedrons
  
Mohs Hardness
Not Available
  
3.5-4
  
Chemical Composition
Not Available
  
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Allanite and Cuprite Chemical Formula
While comparing Allanite and Cuprite 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 Allanite and Cuprite chemical formula.
>- Chemical formula of Cuprite- Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Allanite and Cuprite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Allanite and Cuprite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Allanite and Cuprite Optical Properties during the identification of gemstone. Specific gravity of Allanite is 5.85-6.15 whereas that of Cuprite is 5.85-6.15.