Sodalite and Willemite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.15-2.40
3.89-4.18
Fracture
Conchoidal, Uneven, UnevenArthur Thomas, Brittle
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven
Cleavage
Poor on {110}
{0001}, {11 2 0} imperfect
Chemical Composition
Na8Al6Si6O24Cl2
Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Sodalite and Willemite Chemical Formula
While comparing Sodalite and Willemite 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 Sodalite and Willemite chemical formula.
- Chemical formula of Sodalite- Na8Al6Si6O24Cl2
- Chemical formula of Willemite- Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Sodalite and Willemite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sodalite and Willemite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sodalite and Willemite Optical Properties during the identification of gemstone. Specific gravity of Sodalite is 3.89-4.18 whereas that of Willemite is 3.89-4.18.