Cordierite and Beryllonite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.57-2.66
2.79-2.87
Fracture
Subconchoidal, Conchoidal, Brittle
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
Fair on {100}, poor on {001} and {010}
{010} perfect; {100} good, interrupted; {101} indistinct; {001} in traces
Mohs Hardness
7-7.5
5.5-6
Chemical Composition
Mg2Al4Si5O18
NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Cordierite and Beryllonite Chemical Formula
While comparing Cordierite and Beryllonite 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 Beryllonite chemical formula.
- Chemical formula of Cordierite- Mg2Al4Si5O18
- Chemical formula of Beryllonite- NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Cordierite and Beryllonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cordierite and Beryllonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite and Beryllonite Optical Properties during the identification of gemstone. Specific gravity of Cordierite is 2.79-2.87 whereas that of Beryllonite is 2.79-2.87.