{
  "id": "feldspar",
  "name": "Orthoclase Feldspar",
  "chemical_formula": "KAlSi3O8",
  "mohs_hardness": 6.0,
  "color": "White, pink, or grey",
  "luster": "Vitreous",
  "url": "https://gratisapi.com/api/minerals/feldspar"
}