Cuprite and Astrophyllite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
5.85-6.15
  
3.2-3.4
  
Fracture
Conchoidal, Metallic, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
  
Uneven, Brittle, Metallic
  
Cleavage
Fair in four directions forming octahedrons
  
Perfect on [001] imperfect on [100]
  
Mohs Hardness
3.5-4
  
3
  
Chemical Composition
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
  
Cuprite and Astrophyllite Chemical Formula
While comparing Cuprite and Astrophyllite 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 Cuprite and Astrophyllite chemical formula.
- Chemical formula of Cuprite- Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Astrophyllite- (K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
Cuprite and Astrophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cuprite and Astrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cuprite and Astrophyllite Optical Properties during the identification of gemstone. Specific gravity of Cuprite is 3.2-3.4 whereas that of Astrophyllite is 3.2-3.4.