Ettringite and Turquoise Physical Properties
Tenacity
Not Available
Not Available
Solubility
Partially soluble in water
Soluble
Durability
Not Available
Not Available
Specific Gravity
1.77
2.30-2.90
Fracture
Not Available
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Cleavage
Perfect on {10 1 0}
Good to perfect_usually N/A
Chemical Composition
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
CuAl6(PO4)4(OH)8 • 4H2O
Ettringite and Turquoise Chemical Formula
While comparing Ettringite 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 Ettringite and Turquoise chemical formula.
- Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Turquoise- CuAl6(PO4)4(OH)8 • 4H2O
Ettringite and Turquoise Specific Gravity
Another important criteria for qualitative analysis of gemstones is Ettringite and Turquoise Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ettringite and Turquoise Optical Properties during the identification of gemstone. Specific gravity of Ettringite is 2.30-2.90 whereas that of Turquoise is 2.30-2.90.