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  1. Agate Studies I
  2. Sage Agate A
  3. Fortifications Crazy Lace Agate
  4. Oregon, Owyhee River Valley. Close-up of Morrisonite Jasper
  5. Oregon, Owyhee River Valley. Close-up of Morrisonite Jasper stone
  6. Close-Up Royal Aztec Lace Agate
  7. Cherry Creek Jasper
  8. Sage Agate B
  9. Condor Agate With Fortifcations
  10. Deschutes Jasper, Oregon
  11. Earth Agate F
  12. Zig Zag Pattern Crazy Lace Agate
  13. Agate Studies II
  14. Agate Studies III
  15. Laguna Agate
  16. Bismuth crystal
  17. Rhodochrosite Mineral From China's Wuton Mine
  18. Cut and polished diamond
  19. Colorful Petrified Wood
  20. Modern Geode I
  21. Plum Agate B
  22. Grey Agate E
  23. Fortifications Agua Nueva Agate
  24. Close Ups Of Fortification On Crazy Lace Agate
  25. Stacked Agate II
  26. Grey Agate B
  27. Amethyst crystals
  28. Oregon, Owyhee River Valley. Close-up of Morrisonite Jasper
  29. Bolivia, Potosi, Amethyst in a Bolivian museum
  30. Gem Stones I
  31. Indigo Agate C
  32. Stacked Agate I
  33. Glutamic acid crystals, light micrograph
  34. Malachite
  35. Chrysocolla
  36. Gem Stones III
  37. Shattuckite Jasper
  38. Blue Watercolor Agate Rectangle
  39. Ocean Jasper
  40. Rainbow Ridge Picture Agate
  41. Purple Watercolor Agate II
  42. Agate Studies IV
  43. Iron pyrites
  44. Indigo Agate D
  45. Purple Watercolor Agate I
  46. Moss Agate
  47. Watercolor Agate I
  48. Quartz crystals