Chemical formula: FeS₂
Purity: > 95%
Crystal Structure: cubic, a=5.417
Theoretical density:  5.02 g/cm³
Particle size: 100-500 nm
Tap density: 0.8-1.2 g/cm³
Chemical stability: sensitive to air and water; stable up to 500^oC under nitrogen/argon.
Major Applications: high power Li-FeS₂ primary batteries and thermal batteries.

XRD of synthetic FeS2