gemstones

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41. Strong Color Change Alexandrite Cushion: Extremely rare Alexandrite (Chrysoberyl) Cushion 21.41cts from India (Deobhog area); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-alexandrite-cushion-21-41-faceted_ax6302aa
42. Strong Color Change Alex. Oval 2.10cts.: Extremely rare Alexandrite (Chrysoberyl) Oval 2.1cts from India (Deobhog area); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-alexandrite-oval-2-1-faceted_YAX488aa
43. Strong Color Change 9.2x4.6mm Alexandrite: Extremely rare Alexandrite (Chrysoberyl) Fancy 2.05cts from Tanzania (Tunduru); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-alexandrite-fancy-2-05-faceted_yax520aa
44. Strong Change Natural Alexandrite 8.08cts.: Extremely rare Alexandrite (Chrysoberyl) Pear 8.08cts from Tanzania (Tunduru); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-alexandrite-pear-8-08-faceted_AX4222aa
45. Strong Change Natural Alexandrite 7.24cts.: Extremely rare Alexandrite (Chrysoberyl) Pear 7.24cts from Tanzania (Tunduru); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-alexandrite-pear-7-24-faceted_AX4221aa
46. Strong Change Natural Alexandrite 13.55cts.: Extremely rare Alexandrite (Chrysoberyl) Oval 13.55cts from Tanzania (Tunduru); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-alexandrite-oval-13-55-faceted_AX4220aa
47. Strong Change Natural Alexandrite 10.20cts.: Extremely rare Alexandrite (Chrysoberyl) Oval 10.2cts from Tanzania (Tunduru); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-alexandrite-oval-10-2-faceted_AX4219aa
48. SSEF: SSEF laboratory offers analysis of precious stones and issue test reports for diamonds, coloured stones and pearls. It was recognized in 1978 by the International Confederation of Jewellers and Goldsmiths (CIBJO and also a member of the International Colo; HTML, 65 Kb, 2009-03-15 03:08:12; /directory/laboratories/ssef-wdd-003-00018.html
49. Spectrum: Any array of electromagnetic visible light ordered according to its constituent wavelengths or colors, when the white light is dispersed by a prism or diffraction grating, ranging from about 750 to about 400 nm. The spectra can obtained by means of spectr; HTML, 27 Kb, 2008-07-20 13:06:54; /chapters/glossary/spectrum.html
50. Spectroscope: A small hand optical device for obtaining and visually observing spectrum, in which collimated light passes through a narrow slit onto either a prism or diffraction grating, its spectrum being viewed by a lens system or telescope. The angle between the c; HTML, 24 Kb, 2008-07-20 13:06:53; /chapters/glossary/spectroscope.html
51. Sharp Chrysoberyl Cats Eye Cab 3.29cts.: Hard to find Cymophane (Chrysoberyl) Oval 3.29cts from Tanzania (Tunduru); HTML, 14 Kb, -0001-11-30 00:00:00; /gemstones/natural-cymophane-oval-3-29-traditional_YCB133ac
52. Sharp Chrysoberyl Cats Eye 5.90cts.: Rare Cymophane (Chrysoberyl) Oval 5.9cts from Tanzania (Tunduru); HTML, 14 Kb, -0001-11-30 00:00:00; /gemstones/natural-cymophane-oval-5-9-traditional_CB4272aa
53. Sharp Chrysoberyl Cat's Eye Oval 2.52cts.: Hard to find Cymophane (Chrysoberyl) Oval 2.52cts from Madagascar (Ilakaka); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-cymophane-oval-2-52-traditional_CB1949b
54. Sharp Chrysoberyl Cat's Eye Oval 2.29cts.: Hard to find Cymophane (Chrysoberyl) Oval 2.29cts from Madagascar (Ilakaka); HTML, 14 Kb, -0001-11-30 00:00:00; /gemstones/natural-cymophane-oval-2-29-traditional_CB1949c
55. Russian Alexandrite, Malyshevskoye: Information about Russian alexandrite findings and mining in Malyshevskoye, Russia.; HTML, 29 Kb, 2008-07-31 07:34:54; /localities/alexandrite-locality-russia-malyshevskoye-deposit.html
56. Red color change garnet at Alexandrite discussion forums | Alexandrite guide: Red color change garnet at Alexandrite discussion forums | Alexandrite guide; HTML, 25 Kb, 2008-09-16 02:21:00; /discussion/post/red-color-change-garnet-FRM-282-00003
57. Re: Zandrite at Alexandrite discussion forums | Alexandrite guide: Re: Zandrite at Alexandrite discussion forums | Alexandrite guide; HTML, 25 Kb, 2009-03-28 12:20:00; /discussion/post/re-zandrite-FRM-324-00002
58. Re: Buying Alexandrite at Alexandrite discussion forums | Alexandrite guide: Re: Buying Alexandrite at Alexandrite discussion forums | Alexandrite guide; HTML, 25 Kb, 2007-08-02 15:09:15; /discussion/post/re-buying-alexandrite-FRM-134-00001
59. Re: Browse gemstones tagged with color change gemstone at Alexandrite discussion forums | Alexandrite guide: Re: Browse gemstones tagged with color change gemstone at Alexandrite discussion forums | Alexandrite guide; HTML, 25 Kb, 2010-01-30 00:24:06; /discussion/post/re-browse-gemstones-tagged-with-color-change-gemstone-FRM-355-00001
60. Re: Are there any other gemstones which change color? at Alexandrite discussion forums | Alexandrite guide: Re: Are there any other gemstones which change color? at Alexandrite discussion forums | Alexandrite guide; HTML, 25 Kb, 2007-07-26 12:09:00; /discussion/post/re-are-there-any-other-gemstones-which-change-color-FRM-282-00002
61. Re: Are there any other gemstones which change color? at Alexandrite discussion forums | Alexandrite guide: Re: Are there any other gemstones which change color? at Alexandrite discussion forums | Alexandrite guide; HTML, 25 Kb, 2007-06-11 02:03:00; /discussion/post/re-are-there-any-other-gemstones-which-change-color-FRM-282-00001
62. Quality Orissa Alexandrite Oval 1.60cts.: Rare Alexandrite (Chrysoberyl) Oval 1.6cts from India (Deobhog area); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-alexandrite-oval-1-6-faceted_xax321aa
63. Quality Natural Alexandrite Cushion 2.70cts.: Extremely rare Alexandrite (Chrysoberyl) Cushion 2.7cts from India (Deobhog area); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-alexandrite-cushion-2-7-faceted_YAX129aa
64. Quality Alexandrite Pear Shape 2.12cts.: Extremely rare Alexandrite (Chrysoberyl) Pear 2.12cts from Tanzania (Tunduru); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-alexandrite-pear-2-12-faceted_XAX333af
65. Physical properties: Physical properties of gemstones are extremely important in understanding geological phenomena in synthesizing new materials, and identification of minerals. Physical properties and chemical composition of minerals change with temperature and pressure. P; HTML, 24 Kb, 2008-07-20 13:06:22; /chapters/glossary/physical-properties.html
66. Phenomenon: A special optical occurrence, or circumstance observed or are visible in certain gemstones such as chatoyancy, asterism, or play of color, adularescence, girasol, labradorescence, opalescence, schiller, etc.; HTML, 24 Kb, 2008-07-20 13:06:20; /chapters/glossary/phenomenon.html
67. Phenomenal gemstones at Alexandrite discussion forums | Alexandrite guide: Phenomenal gemstones at Alexandrite discussion forums | Alexandrite guide; HTML, 25 Kb, 2010-10-18 19:20:37; /discussion/topic/phenomenal-gemstones-FRM-378
68. Pegmatite: A light-colored, coarse-grained igneous rock from granite clan containing orthoclase, quartz, microline, mica, gemstones, and many ferromagnesian minerals resulting from slow solidification. Pegmatite is occurring place of many uncommon gem minerals such; HTML, 24 Kb, 2008-07-20 13:06:14; /chapters/glossary/pegmatite.html
69. Pala International: HTML, 64 Kb, 2009-03-30 07:51:42; /directory/gemstone-dealers/pala-international-wdd-003-00032.html
70. Outstanding Color/Cut 11x9mm Chrysoberyl Oval: Rare Chrysoberyl (Chrysoberyl) Oval 6.02cts from Tanzania (Tunduru); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-chrysoberyl-oval-6-02-faceted_YCB144aa
71. Outstanding 11x8mm Chrysoberyl Pear 3.43cts: Hard to find Chrysoberyl (Chrysoberyl) Pear 3.43cts from Tanzania (Tunduru); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-chrysoberyl-pear-3-43-faceted_ycb146nq
72. Outstanding 11.8x9mm Chrysoberyl Oval 5.46cts: Rare Chrysoberyl (Chrysoberyl) Oval 5.46cts from Tanzania (Tunduru); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-chrysoberyl-oval-5-46-faceted_ycb146nw
73. Outstanding 10x8.7mm Chrysoberyl Ov 3.72cts: Hard to find Chrysoberyl (Chrysoberyl) Oval 3.72cts from Tanzania (Tunduru); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-chrysoberyl-oval-3-72-faceted_ycb146np
74. Obtala Resources agrees licensing deal with Gemstones of Africa at Alexandrite discussion forums | Alexandrite guide: Obtala Resources agrees licensing deal with Gemstones of Africa at Alexandrite discussion forums | Alexandrite guide; HTML, 25 Kb, 2009-03-16 03:40:00; /discussion/topic/obtala-resources-agrees-licensing-deal-with-gemsto-FRM-284
75. Nice Natural Alexandrite Oval 8.94cts.: Extremely rare Alexandrite (Chrysoberyl) Oval 8.94cts from Tanzania (Tunduru); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-alexandrite-oval-8-94-faceted_AX4224aa
76. Nice Emerald Cut Chrysoberyl 8.18cts.: Rare Chrysoberyl (Chrysoberyl) Octagon 8.18cts from Sri Lanka (Balangoda); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-chrysoberyl-octagon-8-18-faceted_vcb207ab
77. Nice Emerald Cut Chrysoberyl 2.56cts.: Hard to find Chrysoberyl (Chrysoberyl) Octagon 2.56cts from Tanzania (Tunduru); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-chrysoberyl-octagon-2-56-faceted_XCB135ac
78. Nice Color Tanzanian Chrysoberyl 3.35ct.: Hard to find Chrysoberyl (Chrysoberyl) Oval 3.35cts from Tanzania (Tunduru); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-chrysoberyl-oval-3-35-faceted_ycb146jy
79. Nice Color Change Alexandrite Oval 7.46cts.: Extremely rare Alexandrite (Chrysoberyl) Oval 7.46cts from Tanzania (Tunduru); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-alexandrite-oval-7-46-faceted_XAX334aa
80. Nice Color Change Alexandrite Oval 2.09cts.: Extremely rare Alexandrite (Chrysoberyl) Oval 2.09cts from India (Deobhog area); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-alexandrite-oval-2-09-faceted_xax327ab

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