Gahnite and Steatite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
4.00-4.62
  
2.20-2.80
  
Fracture
Conchoidal, Uneven
  
Not Available
  
Cleavage
Indistinct parting on [111]
  
Not Available
  
Mohs Hardness
7.5-8
  
Not Available
  
Chemical Composition
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Mg 3Si 4O 10(OH) 2Gemdat.org , Management Team (2012)
  
Gahnite and Steatite Chemical Formula
While comparing Gahnite and Steatite 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 Steatite chemical formula.
- Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Steatite- Mg 3Si 4O 10(OH) 2Gemdat.org , Management Team (2012)
Gahnite and Steatite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Gahnite and Steatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnite and Steatite Optical Properties during the identification of gemstone. Specific gravity of Gahnite is 2.20-2.80 whereas that of Steatite is 2.20-2.80.