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  1. Algerian Sahara - USGS Earth as Art
  2. Healing Crystals II
  3. Tiger Iron II
  4. Marble
  5. Mineral Rings Geode
  6. Alabama - USGS State Mosaic
  7. Stone surface
  8. Blue II
  9. Karman Vortices - USGS Earth as Art
  10. Blue agate geode
  11. Himalayas - USGS Earth as Art
  12. Agate 3
  13. Illinois - USGS State Mosaic
  14. Circle pattern of Onyx Stone
  15. North Carolina - USGS State Mosaic
  16. Agate 4
  17. Wyoming - USGS State Mosaic
  18. Zasite Stone With Rudby
  19. Oregon. Close-up of Owyhee Picture Jasper stone
  20. Close up of mineral rock
  21. Pietersite from Namibia
  22. Oregon - USGS State Mosaic
  23. Pietersite from Namibia
  24. Mt. Etna - USGS Earth as Art
  25. Peridot
  26. Amethyst crystals
  27. Marble
  28. mineral
  29. Oregon. Close-up of Owyhee Picture Jasper stone
  30. Small diamonds in row
  31. Ghostly Grease Ice - USGS Earth as Art
  32. State Posters - South Carolina State Gemstone: Amethyst
  33. Scripted Jasper
  34. Stratified rock at Agio Pavlos, island of Crete, Greece, Mediterranean
  35. Colorful Petrified Dinosaur Bone
  36. Grey Agate III
  37. Ice Stars - USGS Earth as Art
  38. Tiger Iron I
  39. Sea salt, SEM
  40. Close-up of polychromic sandstone rock patterns, Petra, Jordan, Middle East
  41. Island Rebound - USGS Earth as Art
  42. Swirl pattern on Deschutes Jasper Slab
  43. New Hampshire - USGS State Mosaic
  44. Petrified Wood close-up
  45. Molecular model of quartz
  46. Close-up of gilded surface
  47. Siberian Ribbons - USGS Earth as Art
  48. Northern Norway - USGS Earth as Art