Chromite and Adamite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
4.5-4.8
  
4.32-4.48
  
Fracture
Uneven
  
Uneven, Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven, Subconchoidal, Brittle, Metallic, Brittle, Metallic
  
Cleavage
None, parting may develop along {111}
  
{101}, good; {010}, poor
  
Mohs Hardness
5.5
  
3.5
  
Chemical Composition
Fe++Cr2O4
  
Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)
  
Chromite and Adamite Chemical Formula
While comparing Chromite and Adamite 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 Chromite and Adamite chemical formula.
- Chemical formula of Chromite- Fe++Cr2O4
- Chemical formula of Adamite- Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)
Chromite and Adamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chromite and Adamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chromite and Adamite Optical Properties during the identification of gemstone. Specific gravity of Chromite is 4.32-4.48 whereas that of Adamite is 4.32-4.48.