Alunite and Copper Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Soluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.6-2.9
  
Not Available
  
Fracture
Conchoidal, Uneven
  
Hackly Jagged, torn surfaces, (e.g. fractured metals)., torn surfaces, (e.g. fractured metals).
  
Cleavage
On {0001}, perfect
  
None
  
Mohs Hardness
3.5-4
  
2.5
  
Chemical Composition
KAl3(SO4)2(OH)6
  
Cu
  
Alunite and Copper Chemical Formula
While comparing Alunite and Copper 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 Alunite and Copper chemical formula.
- Chemical formula of Alunite- KAl3(SO4)2(OH)6
- Chemical formula of Copper- Cu
Alunite and Copper Specific Gravity
Another important criteria for qualitative analysis of gemstones is Alunite and Copper Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alunite and Copper Optical Properties during the identification of gemstone. Specific gravity of Alunite is Not Available whereas that of Copper is Not Available.