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  1. Oregon. Close-up of Owyhee Picture Jasper stone
  2. Pietersite from Namibia
  3. Citrine crystals
  4. Garden City, Kansas - USGS Earth as Art
  5. Virginia - USGS State Mosaic
  6. Gem Stones I
  7. Banded sandstone rock
  8. Tiger Eye
  9. Closeup of granite
  10. Rock wall from road cut, Icefields Parkway, Alberta, Canada
  11. Agate 10
  12. Circle pattern of Onyx Stone
  13. Petrified Wood close-up
  14. Mining drill core sample with gold content
  15. Australian Tiger Eye
  16. Petrified Wood close-up
  17. Crayola Jasper, Primo Jasper, California
  18. Von Karman Vortices - USGS Earth as Art
  19. Close Up Of Petrified Wood, Petrified Forest National Park, Utah, USA
  20. Rock Formations In Mono Lake
  21. Crayola Jasper, Cady Mountain, California
  22. Dasht-e Kevir - USGS Earth as Art
  23. Giant's Causeway
  24. Vatnajokull Glacier Ice Cap - USGS Earth as Art
  25. Sandstone boulders in Goblin Valley, Arches National Park, Utah
  26. New Mexico - USGS State Mosaic
  27. Earthy Minerals
  28. Rugged Terrain - USGS Earth as Art
  29. Algerian Sahara - USGS Earth as Art
  30. Delaware - USGS State Mosaic
  31. Impact - USGS Earth as Art
  32. State Posters - Arkansas State Mineral: Quartz
  33. California Jasper
  34. Bogda Mountains - USGS Earth as Art
  35. Volcanoes - USGS Earth as Art
  36. Pietersite from Namibia
  37. Pietersite from Namibia
  38. Folded limestone, Crete
  39. Vermont - USGS State Mosaic
  40. Massachusetts - USGS State Mosaic
  41. Andes - USGS Earth as Art
  42. Scripted Jasper
  43. Healing Crystal I
  44. Stone
  45. Crystalline Serpent II
  46. Dinosaur Petrified Bone
  47. Gypsum crystals, SEM
  48. Meighen Island - USGS Earth as Art