Londonite and Cordierite Iolite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.34
2.56-2.66
Fracture
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Cleavage
None
Not Available
Mohs Hardness
Not Available
7-7.5
Chemical Composition
(Cs,K,Rb)Al 4Be 4(B,Be) 12O 28Anthony et al , Handbook of mineralogy (2001)
Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
Londonite and Cordierite Iolite Chemical Formula
While comparing Londonite 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 Londonite and Cordierite Iolite chemical formula.
- Chemical formula of Londonite- (Cs,K,Rb)Al 4Be 4(B,Be) 12O 28Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Cordierite Iolite- Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
Londonite and Cordierite Iolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Londonite and Cordierite Iolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Londonite and Cordierite Iolite Optical Properties during the identification of gemstone. Specific gravity of Londonite is 2.56-2.66 whereas that of Cordierite Iolite is 2.56-2.66.