Black copper

{
  "id": "MLC-T-IND-000579",
  "term": "Black copper",
  "field": "Industrial and trades",
  "definition": "An impure form of copper produced during the initial smelting stages of copper ores, containing a high percentage of iron, sulfur, and other impurities. It has a dark, often dull appearance due to the presence of these contaminants. This material requires further refining processes, such as converting and electrorefining, to achieve commercial-grade purity.",
  "subject": "Metallurgy",
  "references": [
    "black copper Definition & Meaning (Merriam-Webster)"
  ],
  "translations": {
    "de": "Schwarzkupfer",
    "es": "cobre negro",
    "fr": "cuivre noir"
  },
  "url": "https://mlchart.com/terminology/industrial/black-copper/"
}