Tanzanite and Sugilite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Hard
Not Available
Specific Gravity
3.35
2.69-2.79
Fracture
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Perfect {010}, imperfect {100}
Poor on {0001}
Mohs Hardness
6.5-7
5.5-6.5
Chemical Composition
Ca2Al3(SiO4)3(OH)
KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Tanzanite and Sugilite Chemical Formula
While comparing Tanzanite and Sugilite 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 Tanzanite and Sugilite chemical formula.
- Chemical formula of Tanzanite- Ca2Al3(SiO4)3(OH)
- Chemical formula of Sugilite- KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Tanzanite and Sugilite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tanzanite and Sugilite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tanzanite and Sugilite Optical Properties during the identification of gemstone. Specific gravity of Tanzanite is 2.69-2.79 whereas that of Sugilite is 2.69-2.79.