gemstones

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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
81. Nice Chrysoberyl Pear Shape 2.64cts.: Hard to find Chrysoberyl (Chrysoberyl) Pear 2.64cts from Tanzania (Tunduru); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-chrysoberyl-pear-2-64-faceted_YAX165ad
82. Nice Change Natural Alexandrite Oval 6.36cts.: Extremely rare Alexandrite (Chrysoberyl) Oval 6.36cts from Tanzania (Tunduru); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-alexandrite-oval-6-36-faceted_AX4225aa
83. Needlelike (silk): Acicular a needle form of inclusions in gemstones.; HTML, 23 Kb, 2008-07-20 13:05:56; /chapters/glossary/needlelike-silk.html
84. Natural Alexandrite Ring at Alexandrite discussion forums | Alexandrite guide: Natural Alexandrite Ring at Alexandrite discussion forums | Alexandrite guide; HTML, 25 Kb, 2009-09-16 05:59:23; /discussion/post/natural-alexandrite-ring-FRM-171-00003
85. Natural alexandrite investment potential? at Alexandrite discussion forums | Alexandrite guide: Natural alexandrite investment potential? at Alexandrite discussion forums | Alexandrite guide; HTML, 25 Kb, 2010-11-27 20:24:36; /discussion/topic/natural-alexandrite-investment-potential-FRM-380
86. Multicolour Gems: HTML, 63 Kb, 2009-03-06 16:25:54; /directory/gemstone-dealers/multicolour-gems-wdd-003-00001.html
87. Methods of Producing Synthetic Alexandrite: Information about melt and flux techniques used for the synthetic alexandrite manufacturing; HTML, 41 Kb, 2008-07-20 13:01:46; /chapters/chapter7/methods-of-producing-synthetic-alexandrite.html
88. Luminescence: The emission of certain visible wavelengths of light from a substance other than thermal process, which are used as diagnostic determination of gemstones. It is caused by the emission of photons, when an exited atom within the substance returns to the gro; HTML, 25 Kb, 2008-07-20 13:05:35; /chapters/glossary/luminescence.html
89. Lively Daylight Green Alexandrite 2.55cts.: Extremely rare Alexandrite (Chrysoberyl) Oval 2.55cts from Tanzania (Tunduru); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-alexandrite-oval-2-55-faceted_XAX333ae
90. Large Collector Alexandrite Oval 6.23cts.: Extremely rare Alexandrite (Chrysoberyl) Oval 6.23cts from Tanzania (Tunduru); HTML, 15 Kb, -0001-11-30 00:00:00; /gemstones/natural-alexandrite-oval-6-23-faceted_AX1874b

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