[{"from": "human", "value": "Please give me some details about this molecule. [S][=Ag]"}, {"from": "gpt", "value": "The molecule is a sulfide of silver found naturally as the mineral acanthite. Silver is a metallic element with the chemical symbol Ag and atomic number 47. It occurs naturally in its pure, free form, as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. (L808, L809, L830)"}]