Atacamite and Smoky Quartz Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.745-3.776
  
2.65
  
Fracture
Conchoidal, Conchoidal, Brittle
  
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Cleavage
Perfect on {010}, fair on {101}
  
{0110} Indistinct
  
Mohs Hardness
3-3.5
  
7
  
Chemical Composition
Cu2Cl(OH)3
  
SiO2
  
Atacamite and Smoky Quartz Chemical Formula
While comparing Atacamite and Smoky Quartz 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 Atacamite and Smoky Quartz chemical formula.
- Chemical formula of Atacamite- Cu2Cl(OH)3
- Chemical formula of Smoky Quartz- SiO2
Atacamite and Smoky Quartz Specific Gravity
Another important criteria for qualitative analysis of gemstones is Atacamite and Smoky Quartz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Atacamite and Smoky Quartz Optical Properties during the identification of gemstone. Specific gravity of Atacamite is 2.65 whereas that of Smoky Quartz is 2.65.