Alexandrite and Adamite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.69-3.81
  
4.32-4.48
  
Fracture
Not Available
  
Uneven, Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven, Subconchoidal, Brittle, Metallic, Brittle, Metallic
  
Cleavage
1,1 ; 3,2.
  
{101}, good; {010}, poor
  
Mohs Hardness
8.5
  
3.5
  
Chemical Composition
BeAl 2 O 4
  
Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)
  
Alexandrite and Adamite Chemical Formula
While comparing Alexandrite 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 Alexandrite and Adamite chemical formula.
- Chemical formula of Alexandrite- BeAl 2 O 4
- Chemical formula of Adamite- Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)
Alexandrite and Adamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Alexandrite and Adamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alexandrite and Adamite Optical Properties during the identification of gemstone. Specific gravity of Alexandrite is 4.32-4.48 whereas that of Adamite is 4.32-4.48.