Sodalite and Faustite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.15-2.40
2.9
Fracture
Conchoidal, Uneven, UnevenArthur Thomas, Brittle
Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal
Cleavage
Poor on {110}
{???} Indistinct
Chemical Composition
Na8Al6Si6O24Cl2
(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Sodalite and Faustite Chemical Formula
While comparing Sodalite and Faustite 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 Faustite chemical formula.
- Chemical formula of Sodalite- Na8Al6Si6O24Cl2
- Chemical formula of Faustite- (Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Sodalite and Faustite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sodalite and Faustite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sodalite and Faustite Optical Properties during the identification of gemstone. Specific gravity of Sodalite is 2.9 whereas that of Faustite is 2.9.