List of Minerals - U

U

  • Uchucchacuaite
  • Uklonskovite
  • Ulexite
  • Ullmannite
  • Ulvospinel
  • Umangite
  • Umber
  • Umbite
  • Upalite
  • Uraninite
  • Uranophane
  • Uranopilite
  • Uvarovite
  • Uytenbogaardtite





Varieties that are not valid species:
  • Ultramarine
  • Unakite, a rock composed of feldspar, epidote and quartz
  • Uralite alteration actinolite

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