Marcasite Balls are Iron Disulphide: FeS2
Marcasite is a form of Iron Pyrite.
In the late medieval and early modern eras, the word “Marcasite” meant all iron sulfides, in general.
This including both Pyrite and Mineral marcasite.
The name Pyrite is derived from the Greek πυρίτης (pyritēs), “of fire”, it will produce sparks when struck onto steel.
Marcasite helps one to maintain good emotional and intellectual health.
Worn for protection by deflecting negative energies and vibrations.
It is very good for those doing dangerous or high-risk work.
Marcasite enhances memory and the ability to recall facts.
Aids one to attain top physical condition by tapping into the universal energies.