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  1. Spilled Paint - USGS Earth as Art
  2. Wingate Pass Agate, Ca
  3. Oregon, Owyhee River Valley. Close-up of Morrisonite Jasper
  4. Richat Structure - USGS Earth as Art
  5. Mineral Spirit II
  6. Mineral Spirit V
  7. Close-up of stones
  8. Ocean Jasper
  9. Modern Geode IV
  10. Meandering Mississippi - USGS Earth as Art
  11. Autumn Agate I
  12. Earth Agate IV
  13. Lena Delta - USGS Earth as Art
  14. Close-up of feldspar granite, Sherman Mountains, Albany County, Laramie County, Wyoming
  15. Quartz crystals
  16. Christmas Jasper
  17. Crystalline Serpent II
  18. Twists
  19. Cut agates
  20. Diamond
  21. Mining drill core sample with gold content
  22. Indigo Agate D
  23. Photography of agate, Stone material, Close Up
  24. Veins
  25. Agate Studies IV
  26. Paisley Agate
  27. Oregon. Close-up of Graveyard Point Plume Agate stone
  28. Plenty Of Blue Agates
  29. Caribbean Luxury - USGS Earth as Art
  30. Agate 9
  31. Siberian Ribbons - USGS Earth as Art
  32. Purple I
  33. Blue Cliff Chrysocolla
  34. Oregon, Owyhee. Close-up of picture jasper stone
  35. Jasper Agate Mixed slab
  36. Cadmium Orange Agate II
  37. Turquoise gemstone
  38. Plum Agate VI
  39. Jewels
  40. Flowering tube onyx, Mexico
  41. Geode Abstract II
  42. Opal gemstones
  43. Blood Orange Agate II
  44. Natural Agate II
  45. Andes - USGS Earth as Art
  46. Lapis Lazuli Agate II
  47. Quartz crystals
  48. Arkansas - USGS State Mosaic