Sanidine and Corundum Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
insoluble
Durability
Not Available
Not Available
Specific Gravity
2.54-2.61
3.90-4.05
Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
Uneven, Uneven, Gems, Difficult, Fibrous
Cleavage
{001} Perfect, {010} Good
None – parting in 3 directions
Chemical Composition
KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Al 2O 3Arthur Thomas , Gemstones (2009)
Sanidine and Corundum Chemical Formula
While comparing Sanidine and Corundum 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 Sanidine and Corundum chemical formula.
- Chemical formula of Sanidine- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Corundum- Al 2O 3Arthur Thomas , Gemstones (2009)
Sanidine and Corundum Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sanidine and Corundum Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sanidine and Corundum Optical Properties during the identification of gemstone. Specific gravity of Sanidine is 3.90-4.05 whereas that of Corundum is 3.90-4.05.