Cordierite and Marialite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.57-2.66
2.50
Fracture
Subconchoidal, Conchoidal, Brittle
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Cleavage
Fair on {100}, poor on {001} and {010}
Distinct on {100} and {110}
Mohs Hardness
7-7.5
5.5-6
Chemical Composition
Mg2Al4Si5O18
3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)
Cordierite and Marialite Chemical Formula
While comparing Cordierite and Marialite 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 Cordierite and Marialite chemical formula.
- Chemical formula of Cordierite- Mg2Al4Si5O18
- Chemical formula of Marialite- 3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)
Cordierite and Marialite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cordierite and Marialite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite and Marialite Optical Properties during the identification of gemstone. Specific gravity of Cordierite is 2.50 whereas that of Marialite is 2.50.