Chrysoprase and Atacamite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.58-2.64
  
3.745-3.776
  
Fracture
Gems, Sixth Edition (2006)
  
Conchoidal, Conchoidal, Brittle
  
Cleavage
None
  
Perfect on {010}, fair on {101}
  
Mohs Hardness
6.5-7
  
3-3.5
  
Chemical Composition
SiO2 (with a high level of nickel impurities )
  
Cu2Cl(OH)3
  
Chrysoprase and Atacamite Chemical Formula
While comparing Chrysoprase and Atacamite 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 Chrysoprase and Atacamite chemical formula.
- Chemical formula of Chrysoprase- SiO2 (with a high level of nickel impurities )
- Chemical formula of Atacamite- Cu2Cl(OH)3
Chrysoprase and Atacamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chrysoprase and Atacamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chrysoprase and Atacamite Optical Properties during the identification of gemstone. Specific gravity of Chrysoprase is 3.745-3.776 whereas that of Atacamite is 3.745-3.776.