Hardystonite and Sugilite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.396-3.443
2.69-2.79
Fracture
Brittle, Metallic
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
[001] good, [100] and [110] fair
Poor on {0001}
Mohs Hardness
3-4
5.5-6.5
Chemical Composition
Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)
KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Hardystonite and Sugilite Chemical Formula
While comparing Hardystonite 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 Hardystonite and Sugilite chemical formula.
- Chemical formula of Hardystonite- Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Sugilite- KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Hardystonite and Sugilite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hardystonite and Sugilite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hardystonite and Sugilite Optical Properties during the identification of gemstone. Specific gravity of Hardystonite is 2.69-2.79 whereas that of Sugilite is 2.69-2.79.