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  1. Closeup of granite
  2. Crystal Reflection II
  3. Meighen Island - USGS Earth as Art
  4. Sapphire
  5. Tourmaline
  6. Crystal Reflection I
  7. State Posters - North Carolina State Gemstone: Emerald
  8. Coastal rocks
  9. Rock Formations In Mono Lake
  10. Massachusetts - USGS State Mosaic