Sugilite and Anhydrite Physical Properties
Specific Gravity
2.69-2.79
2.90-2.98
Fracture
Conchoidal
Conchoidal
Cleavage
Poor on {0001}
Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.
Mohs Hardness
5.5-6.5
3.5
Chemical Composition
KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Sugilite and Anhydrite Chemical Formula
While comparing Sugilite and Anhydrite 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 Anhydrite 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 Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Sugilite and Anhydrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sugilite and Anhydrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sugilite and Anhydrite Optical Properties during the identification of gemstone. Specific gravity of Sugilite is 2.90-2.98 whereas that of Anhydrite is 2.90-2.98.