Achroite and Kunzite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.90-3.40
  
3.15-3.21
  
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Gemstones of the world (2001), UnevenWalter Schumann, Gemstones of the world (2001)
  
Cleavage
Not Available
  
1,2 prismatic
  
Mohs Hardness
7-7.5
  
6-7
  
Chemical Composition
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
  
LiAlSi2O6
  
Achroite and Kunzite Chemical Formula
While comparing Achroite and Kunzite 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 Achroite and Kunzite chemical formula.
- Chemical formula of Achroite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
- Chemical formula of Kunzite- LiAlSi2O6
Achroite and Kunzite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Achroite and Kunzite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Achroite and Kunzite Optical Properties during the identification of gemstone. Specific gravity of Achroite is 3.15-3.21 whereas that of Kunzite is 3.15-3.21.