Smut

{
  "id": "MLC-T-IND-005418",
  "term": "Smut",
  "field": "Industrial and trades",
  "definition": "A fine, black, powdery residue that adheres to coal surfaces, indicating the presence of softer, friable coal. This material consists primarily of carbonaceous dust and can be a byproduct of geological processes or mechanical handling. Its presence can affect the quality and handling characteristics of the coal.",
  "subject": "Mining and extraction",
  "see_also": [
    "barley smut"
  ],
  "translations": {
    "de": "Flöz",
    "es": "carbón blando",
    "fr": "charbon impur"
  },
  "url": "https://mlchart.com/terminology/industrial/smut/"
}