See results 1 - 35 of about 35 for blue green http://www.alexandrite.net/search/ Copyright 2006-2008 Alexandrite.net http://blogs.law.harvard.edu/tech/rss en-gb Thu, 4 Aug 2016 04:48:45 +0100 info@multicolour.com Thu, 4 Aug 2016 04:48:45 +0100 (pics-1.1 "http://www.icra.org/pics/vocabularyv03" l gen true for "http://alexandrite.net" r (n 0 s 0 v 0 l 0 oa 0 ob 0 oc 0 od 0 oe 0 of 0 og 0 oh 0 c 1) gen true for "http://www.alexandrite.net" r (n 0 s 0 v 0 l 0 oa 0 ob 0 oc 0 od 0 oe 0 of 0 og 0 oh 0 c 1)) webmaster@multicolour.com Jabba 2.0 Extremely rare Alexandrite (Chrysoberyl) Oval 2.04cts from India (Deobhog area) http://www.alexandrite.net/gemstones/natural-alexandrite-oval-2-04-faceted_yax391aa http://www.alexandrite.net/viewpage.html?id=ALX-001-00074 Mon, 30 Nov -1 00:00:00 +0000 Extremely rare Alexandrite (Chrysoberyl) Oval 3.06cts from Asia (Andhra Pradesh) http://www.alexandrite.net/gemstones/natural-alexandrite-oval-3-06-faceted_yax588aa http://www.alexandrite.net/viewpage.html?id=GMS-004-00001 Mon, 30 Nov -1 00:00:00 +0000 Rare Alexandrite (Chrysoberyl) Oval 1.05cts from India (Deobhog area) http://www.alexandrite.net/gemstones/natural-alexandrite-oval-1-05-faceted_yax503aa http://www.alexandrite.net/viewpage.html?id=ALX-001-00083 Mon, 30 Nov -1 00:00:00 +0000 Extremely rare Alexandrite (Chrysoberyl) Cushion 21.23cts from Tanzania (Tunduru) http://www.alexandrite.net/gemstones/natural-alexandrite-cushion-21-23-faceted_AX1161aa http://www.alexandrite.net/viewpage.html?id=ALX-001-00002 Mon, 30 Nov -1 00:00:00 +0000 Extremely rare Alexandrite (Chrysoberyl) Oval 2.15cts from India (Deobhog area) http://www.alexandrite.net/gemstones/natural-alexandrite-oval-2-15-faceted_xax328aa http://www.alexandrite.net/viewpage.html?id=ALX-001-00061 Mon, 30 Nov -1 00:00:00 +0000 Rare Alexandrite (Chrysoberyl) Oval 1.01cts from India (Deobhog area) http://www.alexandrite.net/gemstones/natural-alexandrite-oval-1-01-faceted_yax361aa http://www.alexandrite.net/viewpage.html?id=ALX-001-00070 Mon, 30 Nov -1 00:00:00 +0000 Rare Alexandrite (Chrysoberyl) Oval 1.41cts from India (Deobhog area) http://www.alexandrite.net/gemstones/natural-alexandrite-oval-1-41-faceted_yax434aa http://www.alexandrite.net/viewpage.html?id=ALX-001-00076 Mon, 30 Nov -1 00:00:00 +0000 Extremely rare Alexandrite (Chrysoberyl) Round 2.16cts from India (Deobhog area) http://www.alexandrite.net/gemstones/natural-alexandrite-round-2-16-faceted_yax409aa http://www.alexandrite.net/viewpage.html?id=ALX-001-00075 Mon, 30 Nov -1 00:00:00 +0000 Alexandrite from India at Alexandrite discussion forums | Alexandrite guide http://www.alexandrite.net/discussion/post/-alexandrite-from-india-FRM-168-00003 http://www.alexandrite.net/viewpage.html?id=FRM-168-00003 Tue, 28 Nov 2006 18:15:29 +0000 What gemstones change color like alexandrite? at Alexandrite discussion forums | Alexandrite guide http://www.alexandrite.net/discussion/topic/what-gemstones-change-color-like-alexandrite-FRM-282 http://www.alexandrite.net/viewpage.html?id=FRM-282 Fri, 16 Mar 2007 00:59:00 +0000 Alexandrite engagement ring at Alexandrite discussion forums | Alexandrite guide http://www.alexandrite.net/discussion/post/alexandrite-engagement-ring-FRM-176-00001 http://www.alexandrite.net/viewpage.html?id=FRM-176-00001 Sun, 18 Nov 2007 03:07:00 +0000 Answers to frequently asked questions about alexandrite gemstone identification and value. http://www.alexandrite.net/chapters/faq/index.html http://www.alexandrite.net/viewpage.html?id=GG-012 Sat, 14 Mar 2009 18:00:26 +0000 Information about the chrysoberyl mineral, it's properties, varieties and history http://www.alexandrite.net/chapters/chapter3/index.html http://www.alexandrite.net/viewpage.html?id=GG-005 Sun, 8 Mar 2009 07:56:15 +0000 A comprehensive guide to the chrysoberyl family and it's varieties, including alexandrite and cymophane gemstones http://www.alexandrite.net/chapters/chapter4/index.html http://www.alexandrite.net/viewpage.html?id=GG-006 Sun, 8 Mar 2009 07:56:16 +0000 Discussion about the alexandrite effect as a non-color-constancy phenomenon from the color theory perspective http://www.alexandrite.net/chapters/chapter5/index.html http://www.alexandrite.net/viewpage.html?id=GG-007 Sun, 8 Mar 2009 07:56:17 +0000 Guide to synthetic alexandrite production, alexandrite imitations and the differences between natural and synthetic alexandrite http://www.alexandrite.net/chapters/chapter7/index.html http://www.alexandrite.net/viewpage.html?id=GG-009 Sun, 8 Mar 2009 07:56:20 +0000 Comprehensive guide for buying and evaluating alexandrite gemstones http://www.alexandrite.net/chapters/chapter9/index.html http://www.alexandrite.net/viewpage.html?id=GG-011 Sun, 8 Mar 2009 07:56:23 +0000 Glossary of terms that have been discussed or mentioned at Alexandrite gemstone buyer and collectors guide http://www.alexandrite.net/chapters/glossary/index.html http://www.alexandrite.net/viewpage.html?id=GG-016 Sun, 8 Mar 2009 07:58:52 +0000 The characteristic color that is determined by its wavelength as red, green, blue, purple, yellow, etc., and excludes white, black, and shades of gray in reference to the visible spectrum of light. http://www.alexandrite.net/chapters/glossary/hue.html http://www.alexandrite.net/viewpage.html?id=GG-093-00005 Sat, 3 Jul 2010 03:55:08 +0100 An isomorphous mineral of spinel group. A wide range of colors and shade of gemstone. Red-orange is named as flame spinel, an iron-rich dark-green to black, which is known as green spinel, pleonaste or ceylonite, grass-green as chlorospinel (iron-rich), b http://www.alexandrite.net/chapters/glossary/spinel.html http://www.alexandrite.net/viewpage.html?id=GG-104-00006 Sat, 3 Jul 2010 03:55:02 +0100 The theory that the eye contains three different groups of retinal fibers (cones) with maximum response to three primary colors to red-yellow, green, and blue violet, which are parts of the spectrum. http://www.alexandrite.net/chapters/glossary/young-helmholtz-theory-of-color-vision.html http://www.alexandrite.net/viewpage.html?id=GG-084-00004 Sat, 3 Jul 2010 03:55:39 +0100 The mining of alexandrite in Russia lasted less than 100 years from the time it was discovered in 1833 to the early 1900’s. It was George Kunz, the gemologist/gemstone buyer for Tiffany & Co that probably did the most to popularize this unique gemst http://www.alexandrite.net/chapters/faq/is-there-a-difference-between-russian-and-brazilian-alexandrite-gemstones.html http://www.alexandrite.net/viewpage.html?id=GG-0120 Tue, 12 Aug 2008 03:41:53 +0100 Chrysoberyl is the species name and Alexandrite is the variety name. Alexandrite is that variety of chrysoberyl that changes color as a function of the light source; green in daylight and red under incandescent light. http://www.alexandrite.net/chapters/faq/what-is-the-difference-between-chrysoberyl-and-alexandrite.html http://www.alexandrite.net/viewpage.html?id=GG-0122 Tue, 29 Jul 2008 12:59:18 +0100 Several other well known gemstones, including diaspore, sapphire, garnet and spinel may also change color as a function of the light source but the color change of top alexandrites is distinctive and attractive under any light conditions. http://www.alexandrite.net/chapters/faq/are-there-any-other-gemstones-which-change-color.html http://www.alexandrite.net/viewpage.html?id=GG-0125 Tue, 29 Jul 2008 12:59:19 +0100 Alexandrite is a trichroic gemstone which absorbs and reflects light differently in each of its three optical directions. Spectroscopic analysis reveals a different absorption spectrum for each of the three optical directions. The differences in absorptio http://www.alexandrite.net/chapters/faq/why-does-alexandrite-appear-to-change-color-in-sunlight-and-artificial-light.html http://www.alexandrite.net/viewpage.html?id=GG-0126 Tue, 29 Jul 2008 12:59:19 +0100 Unfortunately, most alexandrites show either a nice color in daylight or an attractive color under incandescent light. Rarely are both colors bright and vivid and often stones that change to bright red under incandescent light are only brown or almost bla http://www.alexandrite.net/chapters/faq/what-are-the-most-common-colors-of-alexandrite.html http://www.alexandrite.net/viewpage.html?id=GG-0127 Tue, 29 Jul 2008 12:59:19 +0100 http://www.alexandrite.net/chapters/faq/how-can-i-spot-the-difference-between-a-natural-and-a-synthetic-alexandrite.html http://www.alexandrite.net/viewpage.html?id=GG-0132 Tue, 29 Jul 2008 13:02:11 +0100 Very modern, sleek Alexandrite ring at Alexandrite discussion forums | Alexandrite guide http://www.alexandrite.net/discussion/post/very-modern-sleek-alexandrite-ring-FRM-287-00002 http://www.alexandrite.net/viewpage.html?id=FRM-287-00002 Thu, 19 Mar 2009 22:47:00 +0000 Alexandrite - Malacacheta at Alexandrite discussion forums | Alexandrite guide http://www.alexandrite.net/discussion/post/alexandrite-malacacheta-FRM-335-00001 http://www.alexandrite.net/viewpage.html?id=FRM-335-00001 Wed, 1 Apr 2009 11:40:00 +0100 Color change garnet vs Alexandrite at Alexandrite discussion forums | Alexandrite guide http://www.alexandrite.net/discussion/post/color-change-garnet-vs-alexandrite-FRM-341-00002 http://www.alexandrite.net/viewpage.html?id=FRM-341-00002 Sun, 5 Apr 2009 00:40:00 +0100 Natural Alexandrite Ring at Alexandrite discussion forums | Alexandrite guide http://www.alexandrite.net/discussion/post/natural-alexandrite-ring-FRM-171-00003 http://www.alexandrite.net/viewpage.html?id=FRM-171-00003 Wed, 16 Sep 2009 05:59:23 +0100 In need of Help Identifying... at Alexandrite discussion forums | Alexandrite guide http://www.alexandrite.net/discussion/topic/in-need-of-help-identifying-FRM-422 http://www.alexandrite.net/viewpage.html?id=FRM-422 Mon, 6 Jun 2011 03:29:28 +0100 In need of Help Identifying... at Alexandrite discussion forums | Alexandrite guide http://www.alexandrite.net/discussion/topic/in-need-of-help-identifying-FRM-423 http://www.alexandrite.net/viewpage.html?id=FRM-423 Mon, 6 Jun 2011 03:31:34 +0100 I was told this was an alexandrite when given to me. at Alexandrite discussion forums | Alexandrite guide http://www.alexandrite.net/discussion/topic/i-was-told-this-was-an-alexandrite-when-given-to-m-FRM-424 http://www.alexandrite.net/viewpage.html?id=FRM-424 Thu, 9 Jun 2011 02:01:22 +0100 Re: In need of Help Identifying... at Alexandrite discussion forums | Alexandrite guide http://www.alexandrite.net/discussion/post/re-in-need-of-help-identifying-FRM-423-00001 http://www.alexandrite.net/viewpage.html?id=FRM-423-00001 Sun, 19 Jun 2011 07:20:06 +0100