Iolite and Phenakite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.6-2.7
2.90-2.98
Fracture
Not Available
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle
Cleavage
3,1
Distinct on {11 2 0}, imperfect on {10 1 1}
Mohs Hardness
7-7.5
7.5-8
Chemical Composition
Mg2Al4Si5O18
Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Iolite and Phenakite Chemical Formula
While comparing Iolite and Phenakite 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 Phenakite chemical formula.
- Chemical formula of Iolite- Mg2Al4Si5O18
- Chemical formula of Phenakite- Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Iolite and Phenakite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Iolite and Phenakite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Phenakite Optical Properties during the identification of gemstone. Specific gravity of Iolite is 2.90-2.98 whereas that of Phenakite is 2.90-2.98.