Marcasite and Peridot Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.80-4.90
1.54-1.55
Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Uneven
Conchoidal
Cleavage
{010} Indistinct
Poor
Mohs Hardness
6-6.5
6.5-7
Chemical Composition
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Mg,Fe)2SiO4
Marcasite and Peridot Chemical Formula
While comparing Marcasite and Peridot 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 Peridot chemical formula.
- Chemical formula of Marcasite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Peridot- (Mg,Fe)2SiO4
Marcasite and Peridot Specific Gravity
Another important criteria for qualitative analysis of gemstones is Marcasite and Peridot Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Marcasite and Peridot Optical Properties during the identification of gemstone. Specific gravity of Marcasite is 1.54-1.55 whereas that of Peridot is 1.54-1.55.