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Showing below up to 50 results in range #51 to #100.

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  1. (hist) ‎James Nelson ‎[6,014 bytes]
  2. (hist) ‎Dichroscope ‎[5,954 bytes]
  3. (hist) ‎Microscope ‎[5,922 bytes]
  4. (hist) ‎Double Refraction ‎[5,908 bytes]
  5. (hist) ‎Isomorphous replacement ‎[5,802 bytes]
  6. (hist) ‎Chrysoberyl ‎[5,711 bytes]
  7. (hist) ‎Maw-sit-sit ‎[5,692 bytes]
  8. (hist) ‎Hiddenite ‎[5,642 bytes]
  9. (hist) ‎Sheen ‎[5,594 bytes]
  10. (hist) ‎Course:Polarization ‎[5,484 bytes]
  11. (hist) ‎Elbaite variety "Laurellite" ‎[5,320 bytes]
  12. (hist) ‎Brilliance ‎[5,134 bytes]
  13. (hist) ‎Dispersion ‎[5,125 bytes]
  14. (hist) ‎The Chemical Classification of Gems & Minerals ‎[5,019 bytes]
  15. (hist) ‎Sillimanite ‎[4,824 bytes]
  16. (hist) ‎Willemite ‎[4,667 bytes]
  17. (hist) ‎Skull crucible ‎[4,625 bytes]
  18. (hist) ‎Faceting Design Competition Diagrams ‎[4,590 bytes]
  19. (hist) ‎Inclusions:Sapphire ‎[4,585 bytes]
  20. (hist) ‎Serendibite ‎[4,538 bytes]
  21. (hist) ‎Idocrase ‎[4,451 bytes]
  22. (hist) ‎Nature of light ‎[4,383 bytes]
  23. (hist) ‎Course:Optical properties ‎[4,378 bytes]
  24. (hist) ‎Kyanite ‎[4,246 bytes]
  25. (hist) ‎Topaz ‎[4,205 bytes]
  26. (hist) ‎Aquamarine ‎[4,189 bytes]
  27. (hist) ‎Color grading ‎[4,174 bytes]
  28. (hist) ‎Amethyst ‎[4,172 bytes]
  29. (hist) ‎Apatite ‎[4,161 bytes]
  30. (hist) ‎Hardness ‎[4,071 bytes]
  31. (hist) ‎Sea of Cortez pearl ‎[4,024 bytes]
  32. (hist) ‎Home ‎[3,936 bytes]
  33. (hist) ‎Synthetic moissanite ‎[3,921 bytes]
  34. (hist) ‎Crystallography ‎[3,782 bytes]
  35. (hist) ‎Cleavage ‎[3,756 bytes]
  36. (hist) ‎Spodumene ‎[3,737 bytes]
  37. (hist) ‎Coral ‎[3,733 bytes]
  38. (hist) ‎Synthetic forsterite ‎[3,690 bytes]
  39. (hist) ‎Pectolite ‎[3,669 bytes]
  40. (hist) ‎Main ‎[3,656 bytes]
  41. (hist) ‎Lapiz Lazuli ‎[3,649 bytes]
  42. (hist) ‎Alphabetic list by gemstone name ‎[3,643 bytes]
  43. (hist) ‎Quartz ‎[3,635 bytes]
  44. (hist) ‎Diaspore ‎[3,622 bytes]
  45. (hist) ‎Synthetic cubic zirconia ‎[3,618 bytes]
  46. (hist) ‎Poudretteite ‎[3,570 bytes]
  47. (hist) ‎Sphene ‎[3,538 bytes]
  48. (hist) ‎Advanced Testing Tools ‎[3,517 bytes]
  49. (hist) ‎Flame fusion ‎[3,517 bytes]
  50. (hist) ‎Reflection ‎[3,477 bytes]

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