Achroite and Turquoise Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
2.90-3.40
2.30-2.90
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Cleavage
Not Available
Good to perfect_usually N/A
Chemical Composition
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
CuAl6(PO4)4(OH)8 • 4H2O
Achroite and Turquoise Chemical Formula
While comparing Achroite and Turquoise 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 Achroite and Turquoise chemical formula.
- Chemical formula of Achroite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
- Chemical formula of Turquoise- CuAl6(PO4)4(OH)8 • 4H2O
Achroite and Turquoise Specific Gravity
Another important criteria for qualitative analysis of gemstones is Achroite and Turquoise Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Achroite and Turquoise Optical Properties during the identification of gemstone. Specific gravity of Achroite is 2.30-2.90 whereas that of Turquoise is 2.30-2.90.