Crocoite's high density and luster are the result of its lead content. Some crocoite aggregates are composed of bars and splinters, of differing sizes, going in a dozen different directions and produces a certain character to these specimens that is distinctive of crocoite. Crocoite is also one of the very few chromate minerals. Beautiful specimens that show off crocoite's unique color, high luster and unusual character are a prized addition to anyones collection. Luster is adamantine to greasy.
Crystals are translucent to transparent.
Terminations are usually poorly developed and appear uneven or pitted. Also, granular and columnar. Cleavage is distinct in two directions lengthwise, prismatic. Fracture is conchoidal and uneven. Hardness is 2.5 - 3.