Spodumene and Grandidierite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
insoluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.15-3.21
  
2.85-3.00
  
Fracture
Uneven, Subconchoidal, Gemstones (2009)
  
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
  
Cleavage
Perfect prismatic, two directions {110} ∧ {1 1 0} at 87°
  
Perfect
  
Mohs Hardness
6-7
  
7.5
  
Chemical Composition
LiAlSi2O6
  
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
  
Spodumene and Grandidierite Chemical Formula
While comparing Spodumene and Grandidierite 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 Grandidierite chemical formula.
- Chemical formula of Spodumene- LiAlSi2O6
- Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Spodumene and Grandidierite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Spodumene and Grandidierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spodumene and Grandidierite Optical Properties during the identification of gemstone. Specific gravity of Spodumene is 2.85-3.00 whereas that of Grandidierite is 2.85-3.00.