Iolite and Azurite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.6-2.7
3.70-3.90
Fracture
Not Available
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
3,1
Perfect on {011}, fair on {100}, poor on {110}
Mohs Hardness
7-7.5
3.5-4
Chemical Composition
Mg2Al4Si5O18
Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Iolite and Azurite Chemical Formula
While comparing Iolite and Azurite 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 Iolite and Azurite chemical formula.
- Chemical formula of Iolite- Mg2Al4Si5O18
- Chemical formula of Azurite- Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Iolite and Azurite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Iolite and Azurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Azurite Optical Properties during the identification of gemstone. Specific gravity of Iolite is 3.70-3.90 whereas that of Azurite is 3.70-3.90.