Gaylussite and Faustite Physical Properties
Tenacity
Not Available
Not Available
Solubility
decomposes in water
Not Available
Durability
Not Available
Not Available
Specific Gravity
1.93-1.99
2.9
Fracture
Conchoidal, Conchoidal, Brittle
Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal
Cleavage
perfect [110]
{???} Indistinct
Chemical Composition
Na2Ca(CO3)2•5(H2O)
(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Gaylussite and Faustite Chemical Formula
While comparing Gaylussite 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 Gaylussite and Faustite chemical formula.
- Chemical formula of Gaylussite- Na2Ca(CO3)2•5(H2O)
- Chemical formula of Faustite- (Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Gaylussite and Faustite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Gaylussite and Faustite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gaylussite and Faustite Optical Properties during the identification of gemstone. Specific gravity of Gaylussite is 2.9 whereas that of Faustite is 2.9.