{
  "id": "olivine",
  "name": "Olivine",
  "chemical_formula": "(Mg,Fe)2SiO4",
  "mohs_hardness": 6.75,
  "color": "Olive green to yellow-green",
  "luster": "Vitreous",
  "url": "https://gratisapi.com/api/minerals/olivine"
}