a soft silver-white or yellowish metallic element of the alkali metal group; turns yellow in air; occurs in celestite and strontianite
The metallic chemical element (symbol Sr) with an atomic number of 38. It is a soft, reactive, silvery alkaline earth metal.
British chemist Humphry Davy named the element strontium in 1808 after the Scottish town of Strontian. He chose this name based on the earlier mineral term strontianite found in that region.