Binghamite and Andalusite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.55-2.70
  
3.05-3.21
  
Fracture
Not Available
  
Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)
  
Cleavage
Not Available
  
Good on {110}, poor on {100}
  
Mohs Hardness
6.5-7
  
7.5
  
Chemical Composition
SiO 2Arthur Thomas , Gemstones (2009)
  
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
  
Binghamite and Andalusite Chemical Formula
While comparing Binghamite and Andalusite 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 Binghamite and Andalusite chemical formula.
- Chemical formula of Binghamite- SiO 2Arthur Thomas , Gemstones (2009)
- Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Binghamite and Andalusite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Binghamite and Andalusite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Binghamite and Andalusite Optical Properties during the identification of gemstone. Specific gravity of Binghamite is 3.05-3.21 whereas that of Andalusite is 3.05-3.21.