Agate Opal and Atacamite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
1.98-2.50
  
3.745-3.776
  
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001)
  
Conchoidal, Conchoidal, Brittle
  
Cleavage
Not Available
  
Perfect on {010}, fair on {101}
  
Mohs Hardness
5.5-6.5
  
3-3.5
  
Chemical Composition
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
  
Cu2Cl(OH)3
  
Agate Opal and Atacamite Chemical Formula
While comparing Agate Opal 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 Agate Opal and Atacamite chemical formula.
- Chemical formula of Agate Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
- Chemical formula of Atacamite- Cu2Cl(OH)3
Agate Opal and Atacamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Agate Opal and Atacamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Agate Opal and Atacamite Optical Properties during the identification of gemstone. Specific gravity of Agate Opal is 3.745-3.776 whereas that of Atacamite is 3.745-3.776.