Strontium carbonate, a mineral of a white, greenish, or yellowish color, usually occurring in fibrous massive forms, but sometimes in prismatic crystals.

a strontium carbonate (SrCO3) – is a crystalline, colourless or slightly coloured mineral, which is formed in rock fissures and inside the shells in limestones and other calcareous rocks.

Strontianite (SrCO3) is a mineral consisting of strontium carbonate, named after the village of Strontian, Lochaber, Scotland, where it was first discovered. This mineral is white, greenish, or yellowish in color, usually occurring in fibrous massive forms, but sometimes in prismatic crystals. It is an important raw material for the extraction of strontium.