Taenite is one of four known Fe-Ni meteorite minerals.It is opaque with a metallic grayish to white color. The structure is isometric-hexoctahedral. Its density is around 8 g/cm³ and hardness is 5 to 5.5 on the Mohs scale. Taenite is magnetic. The crystal lattice has the c≈a= 3.582Å±0.002Å. The Strunz classification is I/A.08-20, while the Dana classification is 22.214.171.124 . It is a Hexoctahedral (cubic) in structure.