Placer Mining

{
  "id": "MLC-T-ENV-021103",
  "term": "Placer Mining",
  "field": "Environment",
  "definition": "Placer mining is a special opencut method for exploiting deposits of sand or gravel containing workable amounts of valuable minerals. Native gold is the most important placer mineral, but platinum and tin are also found in gravels. Minerals also include zircon, diamond, ruby, and other gems.",
  "references": [
    "IRS Placer Mining Industry Training 3147-121 (7-99) TPDS No. 83436E at http://www.irs.gov/pub/irs-mssp/placer.pdf"
  ],
  "url": "https://mlchart.com/terminology/environment/placer-mining/"
}