{
  "id": "hematite",
  "name": "Hematite",
  "chemical_formula": "Fe2O3",
  "mohs_hardness": 6.0,
  "color": "Steel grey to reddish brown",
  "luster": "Metallic to earthy",
  "url": "https://gratisapi.com/api/minerals/hematite"
}