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  1. Jasper Agate Mixed slab
  2. Tiger Iron II
  3. Ganges River Delta - USGS Earth as Art
  4. mineral
  5. Small diamonds in row
  6. Puerto Rico - USGS State Mosaic
  7. Native copper
  8. Malachite
  9. Mineralogie I
  10. Virginia - USGS State Mosaic
  11. Nebraska - USGS State Mosaic
  12. Agate 4
  13. Petrified Wood close-up
  14. Piute jasper
  15. Lake Disappointment - USGS Earth as Art
  16. The Dardzha Monster - USGS Earth as Art
  17. State Posters - Colorado State Mineral: Rhodochrosite
  18. Algerian Sahara - USGS Earth as Art
  19. Malaspina Glacier - USGS Earth as Art
  20. Ocean Jasper from Madagascar
  21. Healing Crystals II
  22. Karman Vortices - USGS Earth as Art
  23. Illinois - USGS State Mosaic
  24. Blue lace agate
  25. Colorado - USGS State Mosaic
  26. Agate 3
  27. Gamboge Agate II
  28. Impact - USGS Earth as Art
  29. Close-up of Condor Agate stone
  30. Pietersite from Namibia
  31. Close Ups Of Fortification On Crazy Lace Agate
  32. Malachite
  33. Rhodochrosite, Argentina
  34. The Syrian Desert - USGS Earth as Art
  35. Peridot
  36. Michigan - USGS State Mosaic
  37. Himalayas - USGS Earth as Art
  38. New Mexico - USGS State Mosaic
  39. New Hampshire - USGS State Mosaic
  40. Tiger Iron I
  41. Ghostly Grease Ice - USGS Earth as Art
  42. Ice Stars - USGS Earth as Art
  43. Mineralogie III
  44. Jordan - USGS Earth as Art
  45. Australian Tiger Eye
  46. State Posters - South Carolina State Gemstone: Amethyst
  47. Molecular model of quartz
  48. Island Rebound - USGS Earth as Art