Cadmium | Minerals Education CoalitionNamed from the Greek word meaning "calamine", cadmium is a soft, bluish-white metal. . Home Mining & Minerals Information Periodic Table of the Elements.how is cadmium mined,Cadmium - WikipediaCadmium is a chemical element with symbol Cd and atomic number 48. This soft, bluish-white .. Rocks mined for phosphate fertilizers contain varying amounts of cadmium, resulting in a cadmium concentration of as much as 300 mg/kg in the.