Smoky Quartz and Afghanite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.65
  
2.55-2.65
  
Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle, Conchoidal, Brittle
  
Cleavage
{0110} Indistinct
  
Perfect {10 1 0}
  
Mohs Hardness
7
  
5.5-6
  
Chemical Composition
SiO2
  
(Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
  
Smoky Quartz and Afghanite Chemical Formula
While comparing Smoky Quartz and Afghanite 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 Smoky Quartz and Afghanite chemical formula.
- Chemical formula of Smoky Quartz- SiO2
- Chemical formula of Afghanite- (Na,Ca,K) 8(Si,Al) 12O 24(SO 4,Cl,CO 3) 3(H 2O)Arthur Thomas , Gemstones (2009)
Smoky Quartz and Afghanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Smoky Quartz and Afghanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Smoky Quartz and Afghanite Optical Properties during the identification of gemstone. Specific gravity of Smoky Quartz is 2.55-2.65 whereas that of Afghanite is 2.55-2.65.