Gibbsite and Sugilite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.35
2.69-2.79
Fracture
Fibrous, Difficult, Fibrous
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
{001} Perfect
Poor on {0001}
Mohs Hardness
2.5-3
5.5-6.5
Chemical Composition
Al(OH)3
KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Gibbsite and Sugilite Chemical Formula
While comparing Gibbsite 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 Gibbsite and Sugilite chemical formula.
- Chemical formula of Gibbsite- Al(OH)3
- Chemical formula of Sugilite- KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Gibbsite and Sugilite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Gibbsite and Sugilite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gibbsite and Sugilite Optical Properties during the identification of gemstone. Specific gravity of Gibbsite is 2.69-2.79 whereas that of Sugilite is 2.69-2.79.