Hauyne and Achroite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Gelatinises in acids
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.4-2.5
  
2.90-3.40
  
Fracture
Uneven, Conchoidal, Brittle
  
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Cleavage
Distinct on {110}
  
Not Available
  
Mohs Hardness
5-6
  
7-7.5
  
Chemical Composition
(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
  
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.
  
Hauyne and Achroite Chemical Formula
While comparing Hauyne and Achroite 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 Hauyne and Achroite chemical formula.
- Chemical formula of Hauyne- (Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
- 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.
Hauyne and Achroite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hauyne and Achroite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hauyne and Achroite Optical Properties during the identification of gemstone. Specific gravity of Hauyne is 2.90-3.40 whereas that of Achroite is 2.90-3.40.