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  1. Plum Agate I
  2. Patterns created by sea erosion on rocks, Northumberland England, UK
  3. Cobalt Blue Agate II
  4. Von Karman Vortices - USGS Earth as Art
  5. Plenty Of Blue Agates
  6. Indigo Agate D
  7. Purple Watercolor Agate I
  8. Chewy Minerals
  9. Blood Orange Agate II
  10. Florida - USGS State Mosaic
  11. Lapis Lazuli Agate I
  12. Algerian Sahara - USGS Earth as Art
  13. Desert Agate II
  14. Quartz Top II
  15. Quartzsite
  16. Moss Agate
  17. Cadmium Orange Agate I
  18. Karman Vortices - USGS Earth as Art
  19. Kentucky - USGS State Mosaic
  20. Lena Delta - USGS Earth as Art
  21. Wingate Pass Agate, Ca
  22. Andes - USGS Earth as Art
  23. Akpatok Island - USGS Earth as Art
  24. Desert Agate I
  25. Lapis Lazuli Agate II
  26. Mineral Spirit I
  27. Banded Iron II
  28. Watercolor Agate I
  29. Virginia - USGS State Mosaic
  30. Photography of agate, Stone material, Close Up
  31. Pebbles on a beach
  32. Blue Cliff Chrysocolla
  33. Cadmium Orange Agate II
  34. Agate 10
  35. Wisconsin - USGS State Mosaic
  36. Earth Agate IV
  37. Oregon, Owyhee River Valley. Close-up of Morrisonite Jasper
  38. Quartz crystals
  39. Pebbles I
  40. Aster Agate II
  41. Colorado - USGS State Mosaic
  42. Earthy Minerals II
  43. Purple Jasper
  44. Geode Abstract II
  45. Utah - USGS State Mosaic
  46. Quartz crystals
  47. Sierra de Velasco - USGS Earth as Art
  48. Ocean Jasper from Madagascar