Cordierite and Scapolite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.57-2.66
2.58-2.74
Fracture
Subconchoidal, Conchoidal, Brittle
ConchoidalWalter Schumann, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Splintery
Cleavage
Fair on {100}, poor on {001} and {010}
{100} Distinct, {110} Distinct
Mohs Hardness
7-7.5
5.5-6
Chemical Composition
Mg2Al4Si5O18
Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) More from other references
Cordierite and Scapolite Chemical Formula
While comparing Cordierite and Scapolite 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 Scapolite chemical formula.
- Chemical formula of Cordierite- Mg2Al4Si5O18
- Chemical formula of Scapolite- Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) More from other references
Cordierite and Scapolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cordierite and Scapolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite and Scapolite Optical Properties during the identification of gemstone. Specific gravity of Cordierite is 2.58-2.74 whereas that of Scapolite is 2.58-2.74.