Turquoise and Goethite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Soluble
HCl soluble
Durability
Not Available
Not Available
Specific Gravity
2.30-2.90
4.27-4.29
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).
Cleavage
Good to perfect_usually N/A
Perfect {010}
Chemical Composition
CuAl6(PO4)4(OH)8 • 4H2O
FeO(OH)Arthur Thomas , Gemstones (2009)
Turquoise and Goethite Chemical Formula
While comparing Turquoise and Goethite 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 Goethite chemical formula.
- Chemical formula of Turquoise- CuAl6(PO4)4(OH)8 • 4H2O
- Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)
Turquoise and Goethite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Turquoise and Goethite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Turquoise and Goethite Optical Properties during the identification of gemstone. Specific gravity of Turquoise is 4.27-4.29 whereas that of Goethite is 4.27-4.29.