Celestite (sometimes referred to as celestine) is a mineral consisting of strontium sulfate. The mineral is named for its occasional delicate blue color. Celestite is a source of the element strontium, commonly used in fireworks and in various metal alloys.
NOTE: The item photographed is similar to the one you will receive. These specimens are approximately 2" in length, and weigh between 2.4 and 3.0 ounces each. Country of Origin: Madagascar.