Turquoise and Foitite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.30-2.90
3.17
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Handbook of mineralogy (2001)
Cleavage
Good to perfect_usually N/A
None
Chemical Composition
CuAl6(PO4)4(OH)8 • 4H2O
Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)
Turquoise and Foitite Chemical Formula
While comparing Turquoise and Foitite 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 Turquoise and Foitite chemical formula.
- Chemical formula of Turquoise- CuAl6(PO4)4(OH)8 • 4H2O
- Chemical formula of Foitite- Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)
Turquoise and Foitite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Turquoise and Foitite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Turquoise and Foitite Optical Properties during the identification of gemstone. Specific gravity of Turquoise is 3.17 whereas that of Foitite is 3.17.