Small crystals and crusts show the lighter azure color well. Malachite is closely associated with azurite in many ways. Azurite is used in jewelry and for dyes as mentioned above. It is also an unimportant ore of copper. Fine crystal clusters, nodular specimens, and interesting and beautiful combinations with malachite are important pieces in anyone's mineral collection.
Color is azure, deep blue or pale blue if found in small crystals or crusts.
Luster is vitreous to dull depending on habit. Also, aggregate crusts and radiating, botryoidal, nodular and earthy masses. Cleavage is good in one direction and fair in another. Fracture is conchoidal and brittle. Streak is blue.