Turquoise and Marcasite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.30-2.90
4.80-4.90
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Uneven
Cleavage
Good to perfect_usually N/A
{010} Indistinct
Chemical Composition
CuAl6(PO4)4(OH)8 • 4H2O
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Turquoise and Marcasite Chemical Formula
While comparing Turquoise and Marcasite 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 Marcasite chemical formula.
- Chemical formula of Turquoise- CuAl6(PO4)4(OH)8 • 4H2O
- Chemical formula of Marcasite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Turquoise and Marcasite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Turquoise and Marcasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Turquoise and Marcasite Optical Properties during the identification of gemstone. Specific gravity of Turquoise is 4.80-4.90 whereas that of Marcasite is 4.80-4.90.