[{"from": "human", "value": "What can you tell me about this molecule? [S][=Cd]"}, {"from": "gpt", "value": "The molecule is a sulfide of cadmium that occurs naturally as the minerals greenockite and hawleyite and is also produced by sulfate reducing bacteria. It is used mainly as a semiconductor and pigment. Cadmium is a transition metal and chemical element with the symbol Cd and atomic number 48. It is found naturally in the earth's crust, though rarely on it's own. (L6, L455)"}]