{
  "id": "dolomite",
  "name": "Dolomite",
  "chemical_formula": "CaMg(CO3)2",
  "mohs_hardness": 3.75,
  "color": "White, grey, or pinkish",
  "luster": "Vitreous",
  "url": "https://gratisapi.com/api/minerals/dolomite"
}