Sanidine and Andradite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.54-2.61
3.70-4.10
Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
Conchoidal, Uneven, Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
{001} Perfect, {010} Good
none
Chemical Composition
KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Sanidine and Andradite Chemical Formula
While comparing Sanidine and Andradite 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 Andradite chemical formula.
- Chemical formula of Sanidine- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Sanidine and Andradite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sanidine and Andradite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sanidine and Andradite Optical Properties during the identification of gemstone. Specific gravity of Sanidine is 3.70-4.10 whereas that of Andradite is 3.70-4.10.