Marcasite and Ajoite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Decomposed by acids
Durability
Not Available
Not Available
Specific Gravity
4.80-4.90
2.96
Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Uneven
Not Available
Cleavage
{010} Indistinct
Perfect on {010}
Chemical Composition
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)
Marcasite and Ajoite Chemical Formula
While comparing Marcasite and Ajoite 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 Ajoite chemical formula.
- Chemical formula of Marcasite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Ajoite- (K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)
Marcasite and Ajoite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Marcasite and Ajoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Marcasite and Ajoite Optical Properties during the identification of gemstone. Specific gravity of Marcasite is 2.96 whereas that of Ajoite is 2.96.