Sugilite and Gypsum Physical Properties
Tenacity
Not Available
Flexible
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
2.69-2.79
2.20-2.40
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, Splintery, Fibrous, UnevenArthur Thomas, Gemstones (2009)
Cleavage
Poor on {0001}
Perfect on {010}, distinct on {100}
Chemical Composition
KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
Sugilite and Gypsum Chemical Formula
While comparing Sugilite and Gypsum 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 Sugilite and Gypsum chemical formula.
- Chemical formula of Sugilite- KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Gypsum- CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
Sugilite and Gypsum Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sugilite and Gypsum Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sugilite and Gypsum Optical Properties during the identification of gemstone. Specific gravity of Sugilite is 2.20-2.40 whereas that of Gypsum is 2.20-2.40.