Grossular and Spodumene Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
insoluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.55-3.73
  
3.15-3.21
  
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
Uneven, Subconchoidal, Gemstones (2009)
  
Cleavage
none
  
Perfect prismatic, two directions {110} ∧ {1 1 0} at 87°
  
Mohs Hardness
7-7.5
  
6-7
  
Chemical Composition
Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
  
LiAlSi2O6
  
Grossular and Spodumene Chemical Formula
While comparing Grossular and Spodumene 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 Grossular and Spodumene chemical formula.
- Chemical formula of Grossular- Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
- Chemical formula of Spodumene- LiAlSi2O6
Grossular and Spodumene Specific Gravity
Another important criteria for qualitative analysis of gemstones is Grossular and Spodumene Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Grossular and Spodumene Optical Properties during the identification of gemstone. Specific gravity of Grossular is 3.15-3.21 whereas that of Spodumene is 3.15-3.21.