Andalusite and Prasiolite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.05-3.21
  
2.65
  
Fracture
Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)
  
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Cleavage
Good on {110}, poor on {100}
  
3,1
  
Mohs Hardness
7.5
  
7
  
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
  
SiO 2Ulrich Henn and Claudio C.
  
Andalusite and Prasiolite Chemical Formula
While comparing Andalusite and Prasiolite 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 Andalusite and Prasiolite chemical formula.
- Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
- Chemical formula of Prasiolite- SiO 2Ulrich Henn and Claudio C.
Andalusite and Prasiolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Andalusite and Prasiolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andalusite and Prasiolite Optical Properties during the identification of gemstone. Specific gravity of Andalusite is 2.65 whereas that of Prasiolite is 2.65.