Turquoise and Staurolite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.30-2.90
3.7-3.8
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
Good to perfect_usually N/A
Distinct on {010}
Chemical Composition
CuAl6(PO4)4(OH)8 • 4H2O
(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
Turquoise and Staurolite Chemical Formula
While comparing Turquoise and Staurolite 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 Staurolite chemical formula.
- Chemical formula of Turquoise- CuAl6(PO4)4(OH)8 • 4H2O
- Chemical formula of Staurolite- (Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
Turquoise and Staurolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Turquoise and Staurolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Turquoise and Staurolite Optical Properties during the identification of gemstone. Specific gravity of Turquoise is 3.7-3.8 whereas that of Staurolite is 3.7-3.8.