Turquoise and Star Ruby Physical Properties
Tenacity
Not Available
Not Available
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.30-2.90
3.95-4.10
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Uneven, Uneven, Gems, Sixth Edition (2006)
Cleavage
Good to perfect_usually N/A
Not Available
Mohs Hardness
5-6
Not Available
Chemical Composition
CuAl6(PO4)4(OH)8 • 4H2O
Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Turquoise and Star Ruby Chemical Formula
While comparing Turquoise and Star Ruby 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 Star Ruby chemical formula.
- Chemical formula of Turquoise- CuAl6(PO4)4(OH)8 • 4H2O
- Chemical formula of Star Ruby- Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Turquoise and Star Ruby Specific Gravity
Another important criteria for qualitative analysis of gemstones is Turquoise and Star Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Turquoise and Star Ruby Optical Properties during the identification of gemstone. Specific gravity of Turquoise is 3.95-4.10 whereas that of Star Ruby is 3.95-4.10.