A metallic, lead-gray hexagonal mineral with a perfect cleavage, trimorphous with jordisite and molybdenite-3R, having a specific gravity of 4.62 to 5.06 and a hardness of one to 1.5 on the Mohs scale.

A mineral occurring in soft, lead-gray, foliated masses or scales (characterised by being separable into thin plates or folia; as, graphite has a foliated structure), resembling graphite.