{
  "id": "calcite",
  "name": "Calcite",
  "chemical_formula": "CaCO3",
  "mohs_hardness": 3.0,
  "color": "Colorless, white, or pale tints",
  "luster": "Vitreous",
  "url": "https://gratisapi.com/api/minerals/calcite"
}