Schorl and Spodumene Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
insoluble
Durability
Not Available
Not Available
Specific Gravity
3.18-3.22
3.15-3.21
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Uneven, Subconchoidal, Gemstones (2009)
Cleavage
{1011} Indistinct
Perfect prismatic, two directions {110} ∧ {1 1 0} at 87°
Mohs Hardness
Not Available
6-7
Chemical Composition
Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
LiAlSi2O6
Schorl and Spodumene Chemical Formula
While comparing Schorl 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 Schorl and Spodumene chemical formula.
- Chemical formula of Schorl- Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
- Chemical formula of Spodumene- LiAlSi2O6
Schorl and Spodumene Specific Gravity
Another important criteria for qualitative analysis of gemstones is Schorl and Spodumene Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Schorl and Spodumene Optical Properties during the identification of gemstone. Specific gravity of Schorl is 3.15-3.21 whereas that of Spodumene is 3.15-3.21.