Metal concentrate

{
  "id": "MLC-T-ENV-017033",
  "term": "Metal concentrate",
  "field": "Environment",
  "term_source": "Metal Concentrate",
  "definition": "Sludge-like material that is loaded with gold along with various other metals (such as silver, copper, and mercury) and various other substances, that is produced by electrowinning, the Merrill-Crowe process, flotation and gravity separation processes. Concentrate is measured as the input to mercury retorts, or for facilities without mercury retorts, as the input to melt furnaces before any drying takes place. For facilities without mercury retorts or melt furnaces, concentrate is measured as the quantity shipped.",
  "subject": "Natural environments",
  "references": [
    "40 CFR 63.11651 (CFR 2013)"
  ],
  "url": "https://mlchart.com/terminology/environment/metal-concentrate/"
}