Spodumene and Diaspore Physical Properties
Tenacity
Brittle
  
Very brittle
  
Solubility
insoluble
  
insoluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.15-3.21
  
3.30-3.40
  
Fracture
Uneven, Subconchoidal, Gemstones (2009)
  
Conchoidal, Brittle, Conchoidal
  
Cleavage
Perfect prismatic, two directions {110} ∧ {1 1 0} at 87°
  
{010} perfect, {110} distinct, {100} in traces
  
Mohs Hardness
6-7
  
6.5-7
  
Chemical Composition
LiAlSi2O6
  
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
  
Spodumene and Diaspore Chemical Formula
While comparing Spodumene and Diaspore 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 Spodumene and Diaspore chemical formula.
- Chemical formula of Spodumene- LiAlSi2O6
- Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Spodumene and Diaspore Specific Gravity
Another important criteria for qualitative analysis of gemstones is Spodumene and Diaspore Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spodumene and Diaspore Optical Properties during the identification of gemstone. Specific gravity of Spodumene is 3.30-3.40 whereas that of Diaspore is 3.30-3.40.