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Showing below up to 50 results in range #1 to #50.

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  1. (hist) ‎Faceting Designs ‎[104,094 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) ‎Sitesupport-url ‎[8,747 bytes]
  36. (hist) ‎Images:Inclusions ‎[8,679 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]

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