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Alexandrite

Tsarstone collectors guide

gemstones

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
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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
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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
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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
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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
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