{
  "id": "quartz",
  "name": "Quartz",
  "chemical_formula": "SiO2",
  "mohs_hardness": 7.0,
  "color": "Colorless to white, purple, pink, or smoky",
  "luster": "Vitreous",
  "url": "https://gratisapi.com/api/minerals/quartz"
}