Color is pale white, tan, gray, brown, yellow and pink. Luster is pearly, vitreous, greasy to dull. Crystals are translucent to opaque. Crystal System is hexagonal. Crystal Habits include small hexagonal rounded flakes and short prismatic crystals, also in rosettes and spheres as well as massive and granular.
Fracture is uneven.
Hardness is 4 to 4.5. Streak is white.