As of 2014, the element mercury costs between $2,950 and $3,075 per flask. A flask is equivalent to 76 pounds.
Mercury is not typically found in nature and must be processed from the mercury sulfide found in various ores. Like other metals and natural elements, the cost of mercury varies and depends on whether it is purchased in bulk or wholesale, or via retail. The international metals industry site MetalPrices.com indicates that between April and May of 2013, the average low wholesale price for a flask of mercury was $2,950 and the high average retail price for a flask was $3,075. A flask measures 34.46 kilograms, or 76 pounds.
Over time, the price of mercury has been as low as $650 per flask and as high as $48 per gram of pure mercury.