Cordierite and Stichtite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.57-2.66
2.11-2.20
Fracture
Subconchoidal, Conchoidal, Brittle
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Uneven
Cleavage
Fair on {100}, poor on {001} and {010}
Perfect on {0001}
Mohs Hardness
7-7.5
Not Available
Chemical Composition
Mg2Al4Si5O18
Mg 6Cr 2(CO 3)(OH) 16 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Cordierite and Stichtite Chemical Formula
While comparing Cordierite and Stichtite 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 Stichtite chemical formula.
- Chemical formula of Cordierite- Mg2Al4Si5O18
- Chemical formula of Stichtite- Mg 6Cr 2(CO 3)(OH) 16 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Cordierite and Stichtite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cordierite and Stichtite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite and Stichtite Optical Properties during the identification of gemstone. Specific gravity of Cordierite is 2.11-2.20 whereas that of Stichtite is 2.11-2.20.