Cordierite and Ulexite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.57-2.66
1.65-1.99
Fracture
Subconchoidal, Conchoidal, Brittle
UnevenAnthony et al, Uneven, UnevenAnthony et al, Uneven, Brittle, Metallic
Cleavage
Fair on {100}, poor on {001} and {010}
{010} Perfect, {110} Perfect
Mohs Hardness
7-7.5
2-2.5
Chemical Composition
Mg2Al4Si5O18
NaCaB 5O 6(OH) 6 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Cordierite and Ulexite Chemical Formula
While comparing Cordierite and Ulexite 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 Ulexite chemical formula.
- Chemical formula of Cordierite- Mg2Al4Si5O18
- Chemical formula of Ulexite- NaCaB 5O 6(OH) 6 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Cordierite and Ulexite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cordierite and Ulexite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite and Ulexite Optical Properties during the identification of gemstone. Specific gravity of Cordierite is 1.65-1.99 whereas that of Ulexite is 1.65-1.99.