Gahnite and Smoky Quartz Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
4.00-4.62
  
2.65
  
Fracture
Conchoidal, Uneven
  
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Cleavage
Indistinct parting on [111]
  
{0110} Indistinct
  
Mohs Hardness
7.5-8
  
7
  
Chemical Composition
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
  
SiO2
  
Gahnite and Smoky Quartz Chemical Formula
While comparing Gahnite 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 Gahnite and Smoky Quartz chemical formula.
- Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Smoky Quartz- SiO2
Gahnite and Smoky Quartz Specific Gravity
Another important criteria for qualitative analysis of gemstones is Gahnite and Smoky Quartz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnite and Smoky Quartz Optical Properties during the identification of gemstone. Specific gravity of Gahnite is 2.65 whereas that of Smoky Quartz is 2.65.