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Showing below up to 100 results in range #1 to #100.

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  1. (hist) ‎Faceting Designs ‎[151,295 bytes]
  2. (hist) ‎Refractometer ‎[54,784 bytes]
  3. (hist) ‎Origin determination ‎[41,989 bytes]
  4. (hist) ‎Polariscope ‎[32,685 bytes]
  5. (hist) ‎Causes of color ‎[25,676 bytes]
  6. (hist) ‎Luminescence ‎[22,983 bytes]
  7. (hist) ‎Course:Refractometer ‎[19,815 bytes]
  8. (hist) ‎Diamond ‎[18,756 bytes]
  9. (hist) ‎Amber ‎[18,083 bytes]
  10. (hist) ‎Opal ‎[17,948 bytes]
  11. (hist) ‎Garnet ‎[17,317 bytes]
  12. (hist) ‎Glossary of Terms ‎[17,239 bytes]
  13. (hist) ‎Pearl ‎[16,313 bytes]
  14. (hist) ‎Gemstone Treatments and Enhancements ‎[15,437 bytes]
  15. (hist) ‎Heat Treatment ‎[14,250 bytes]
  16. (hist) ‎Spinel ‎[14,009 bytes]
  17. (hist) ‎Sapphire ‎[11,330 bytes]
  18. (hist) ‎Course:Total internal reflection ‎[11,160 bytes]
  19. (hist) ‎Ruby ‎[10,696 bytes]
  20. (hist) ‎Origins of minerals ‎[10,679 bytes]
  21. (hist) ‎Math ‎[10,362 bytes]
  22. (hist) ‎Faceting ‎[10,079 bytes]
  23. (hist) ‎Introduction to Gemology ‎[9,870 bytes]
  24. (hist) ‎Easy Combination cutting MV ‎[9,866 bytes]
  25. (hist) ‎Tourmaline ‎[9,758 bytes]
  26. (hist) ‎Refraction ‎[9,718 bytes]
  27. (hist) ‎Specific Gravity ‎[9,519 bytes]
  28. (hist) ‎The Chemistry of Gemstones ‎[9,412 bytes]
  29. (hist) ‎Essays:Adding arrows ‎[9,190 bytes]
  30. (hist) ‎Color Filters ‎[8,998 bytes]
  31. (hist) ‎Hydrostatic Balance ‎[8,932 bytes]
  32. (hist) ‎Immersion cell ‎[8,890 bytes]
  33. (hist) ‎Emerald ‎[8,817 bytes]
  34. (hist) ‎Coding Help ‎[8,815 bytes]
  35. (hist) ‎Images:Inclusions ‎[8,807 bytes]
  36. (hist) ‎Sitesupport-url ‎[8,747 bytes]
  37. (hist) ‎Nephrite ‎[8,416 bytes]
  38. (hist) ‎Jadeite ‎[8,392 bytes]
  39. (hist) ‎Zircon ‎[8,257 bytes]
  40. (hist) ‎10x Loupe ‎[8,235 bytes]
  41. (hist) ‎Polarization ‎[8,094 bytes]
  42. (hist) ‎Course:Refraction ‎[8,047 bytes]
  43. (hist) ‎Table Of Contents ‎[7,707 bytes]
  44. (hist) ‎Images:Tourmaline ‎[7,665 bytes]
  45. (hist) ‎Color ‎[7,177 bytes]
  46. (hist) ‎Symmetry ‎[6,301 bytes]
  47. (hist) ‎Vesuvianite ‎[6,291 bytes]
  48. (hist) ‎Heavy Liquids ‎[6,254 bytes]
  49. (hist) ‎Spectroscope ‎[6,086 bytes]
  50. (hist) ‎Tanzanite ‎[6,073 bytes]
  51. (hist) ‎James Nelson ‎[6,014 bytes]
  52. (hist) ‎Dichroscope ‎[5,954 bytes]
  53. (hist) ‎Microscope ‎[5,922 bytes]
  54. (hist) ‎Double Refraction ‎[5,908 bytes]
  55. (hist) ‎Isomorphous replacement ‎[5,802 bytes]
  56. (hist) ‎Chrysoberyl ‎[5,711 bytes]
  57. (hist) ‎Maw-sit-sit ‎[5,692 bytes]
  58. (hist) ‎Hiddenite ‎[5,642 bytes]
  59. (hist) ‎Sheen ‎[5,594 bytes]
  60. (hist) ‎Course:Polarization ‎[5,484 bytes]
  61. (hist) ‎Elbaite variety "Laurellite" ‎[5,320 bytes]
  62. (hist) ‎Brilliance ‎[5,134 bytes]
  63. (hist) ‎Dispersion ‎[5,125 bytes]
  64. (hist) ‎The Chemical Classification of Gems & Minerals ‎[5,019 bytes]
  65. (hist) ‎Sillimanite ‎[4,824 bytes]
  66. (hist) ‎Willemite ‎[4,667 bytes]
  67. (hist) ‎Skull crucible ‎[4,625 bytes]
  68. (hist) ‎Faceting Design Competition Diagrams ‎[4,590 bytes]
  69. (hist) ‎Inclusions:Sapphire ‎[4,585 bytes]
  70. (hist) ‎Serendibite ‎[4,538 bytes]
  71. (hist) ‎Idocrase ‎[4,451 bytes]
  72. (hist) ‎Nature of light ‎[4,383 bytes]
  73. (hist) ‎Course:Optical properties ‎[4,378 bytes]
  74. (hist) ‎Kyanite ‎[4,246 bytes]
  75. (hist) ‎Topaz ‎[4,205 bytes]
  76. (hist) ‎Aquamarine ‎[4,189 bytes]
  77. (hist) ‎Color grading ‎[4,174 bytes]
  78. (hist) ‎Amethyst ‎[4,172 bytes]
  79. (hist) ‎Apatite ‎[4,161 bytes]
  80. (hist) ‎Hardness ‎[4,071 bytes]
  81. (hist) ‎Sea of Cortez pearl ‎[4,024 bytes]
  82. (hist) ‎Home ‎[3,936 bytes]
  83. (hist) ‎Synthetic moissanite ‎[3,921 bytes]
  84. (hist) ‎Crystallography ‎[3,782 bytes]
  85. (hist) ‎Cleavage ‎[3,756 bytes]
  86. (hist) ‎Spodumene ‎[3,737 bytes]
  87. (hist) ‎Coral ‎[3,733 bytes]
  88. (hist) ‎Synthetic forsterite ‎[3,690 bytes]
  89. (hist) ‎Pectolite ‎[3,669 bytes]
  90. (hist) ‎Main ‎[3,656 bytes]
  91. (hist) ‎Lapiz Lazuli ‎[3,649 bytes]
  92. (hist) ‎Alphabetic list by gemstone name ‎[3,643 bytes]
  93. (hist) ‎Quartz ‎[3,635 bytes]
  94. (hist) ‎Diaspore ‎[3,622 bytes]
  95. (hist) ‎Synthetic cubic zirconia ‎[3,618 bytes]
  96. (hist) ‎Poudretteite ‎[3,570 bytes]
  97. (hist) ‎Sphene ‎[3,538 bytes]
  98. (hist) ‎Advanced Testing Tools ‎[3,517 bytes]
  99. (hist) ‎Flame fusion ‎[3,517 bytes]
  100. (hist) ‎Reflection ‎[3,477 bytes]

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