Cavansite is a distinctive mineral. It tends to form crystal aggregates, generally in the form of balls. These rosettes can be a few centimeters tall and are usually found on a bed of other zeolite minerals such as Apophyllite and Stilbite. The color of cavansite is distinctive, almost always a rich, bright blue. Because of its rich color and relative rarity, cavansite is a sought after collector’s mineral.