Schorl and Sodalite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
3.18-3.22
2.15-2.40
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Conchoidal, Uneven, UnevenArthur Thomas, Brittle
Cleavage
{1011} Indistinct
Poor on {110}
Mohs Hardness
Not Available
5-6
Chemical Composition
Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Na8Al6Si6O24Cl2
Schorl and Sodalite Chemical Formula
While comparing Schorl and Sodalite 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 Schorl and Sodalite chemical formula.
- Chemical formula of Schorl- Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
- Chemical formula of Sodalite- Na8Al6Si6O24Cl2
Schorl and Sodalite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Schorl and Sodalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Schorl and Sodalite Optical Properties during the identification of gemstone. Specific gravity of Schorl is 2.15-2.40 whereas that of Sodalite is 2.15-2.40.