Marcasite and Carnelian Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.80-4.90
2.58-2.64
Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Uneven
Uneven, Splintery, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
Cleavage
{010} Indistinct
Absent
Mohs Hardness
6-6.5
6.5-7
Chemical Composition
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
SiO2
Marcasite and Carnelian Chemical Formula
While comparing Marcasite and Carnelian 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 Marcasite and Carnelian chemical formula.
- Chemical formula of Marcasite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Carnelian- SiO2
Marcasite and Carnelian Specific Gravity
Another important criteria for qualitative analysis of gemstones is Marcasite and Carnelian Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Marcasite and Carnelian Optical Properties during the identification of gemstone. Specific gravity of Marcasite is 2.58-2.64 whereas that of Carnelian is 2.58-2.64.