Esperite and Cordierite Iolite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.28-4.42
2.56-2.66
Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Metallic
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Cleavage
Distinct on [010] and [100] poor on [101]
Not Available
Mohs Hardness
5-5.5
7-7.5
Chemical Composition
PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
Esperite and Cordierite Iolite Chemical Formula
While comparing Esperite and Cordierite Iolite 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 Esperite and Cordierite Iolite chemical formula.
- Chemical formula of Esperite- PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Cordierite Iolite- Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
Esperite and Cordierite Iolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Esperite and Cordierite Iolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Esperite and Cordierite Iolite Optical Properties during the identification of gemstone. Specific gravity of Esperite is 2.56-2.66 whereas that of Cordierite Iolite is 2.56-2.66.