Cordierite and Natrolite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.57-2.66
2.20-2.26
Fracture
Subconchoidal, Conchoidal, Brittle
Uneven, Brittle, Metallic, Gemstones (2009)
Cleavage
Fair on {100}, poor on {001} and {010}
Perfect on {110}
Mohs Hardness
7-7.5
5-5.5
Chemical Composition
Mg2Al4Si5O18
Na 2[Al 2Si 3O 10] · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Cordierite and Natrolite Chemical Formula
While comparing Cordierite and Natrolite 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 Natrolite chemical formula.
- Chemical formula of Cordierite- Mg2Al4Si5O18
- Chemical formula of Natrolite- Na 2[Al 2Si 3O 10] · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Cordierite and Natrolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cordierite and Natrolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite and Natrolite Optical Properties during the identification of gemstone. Specific gravity of Cordierite is 2.20-2.26 whereas that of Natrolite is 2.20-2.26.