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  1. Marble
  2. Rock wall from road cut, Icefields Parkway, Alberta, Canada
  3. Closeup of granite
  4. Northern Norway - USGS Earth as Art
  5. Sapphire
  6. Meighen Island - USGS Earth as Art
  7. Crystal Reflection II
  8. Tourmaline
  9. State Posters - North Carolina State Gemstone: Emerald
  10. Crystal Reflection I
  11. Coastal rocks
  12. Rock Formations In Mono Lake
  13. Massachusetts - USGS State Mosaic