File list
This special page shows all uploaded files.
First page |
Previous page |
Next page |
Last page |
Date | Name | Thumbnail | Size | Description | Versions |
---|---|---|---|---|---|
09:53, 3 May 2009 | Tourmalien.jpg (file) | 15 KB | 1 | ||
10:29, 3 May 2009 | Koppie2.JPG (file) | 4 KB | 1 | ||
09:31, 3 June 2009 | Visual optics.png (file) | 35 KB | Old woodcut from Dieulafait 1874 ("Diamonds and precious stones") of a man doing “Visual Optics”. | 1 | |
04:06, 8 June 2009 | Tim.jpg (file) | 87 KB | 1 | ||
06:44, 10 September 2009 | Hauynelw.JPG (file) | 30 KB | Hauyne under LWUV | 1 | |
06:45, 10 September 2009 | Africa.JPG (file) | 24 KB | Partially healed fracture in a Hauyne | 1 | |
06:47, 10 September 2009 | Hauynecut.JPG (file) | 11 KB | Cut Hauyne, 0.26ct | 1 | |
07:01, 10 September 2009 | Hauyneqy2.jpg (file) | 11 KB | visible spectrum of a well saturated blue hauyne Spectrum courtesy of dr Brian Thompson | 1 | |
12:28, 22 September 2009 | My Morning Field.jpg (file) | Error creating thumbnail: File missing |
142 KB | design by Jeffrey Hunt | 1 |
12:29, 22 September 2009 | My Morning Field 2.gem (file) | 14 KB | 1 | ||
02:55, 23 September 2009 | Designhelp.jpg (file) | 126 KB | 1 | ||
03:10, 23 September 2009 | Test2.jpg (file) | 189 KB | 1 | ||
03:51, 23 September 2009 | Designhelp3.jpg (file) | 143 KB | 1 | ||
04:00, 23 September 2009 | Designhelp4.jpg (file) | 140 KB | 1 | ||
04:55, 23 September 2009 | Designhelp5.jpg (file) | 149 KB | 1 | ||
11:19, 23 September 2009 | Mitch1.jpg (file) | 161 KB | Image courtesy of mhuynh | 1 | |
11:20, 23 September 2009 | Mitch2.jpg (file) | 155 KB | Image courtesy of mhuynh | 1 | |
11:20, 23 September 2009 | Mitch3.jpg (file) | 168 KB | Image courtesy of mhuynh | 1 | |
11:21, 23 September 2009 | Mitch4.jpg (file) | 179 KB | Image courtesy of mhuynh | 1 | |
11:22, 23 September 2009 | Mitch5.jpg (file) | 171 KB | Image courtesy of mhuynh | 1 | |
11:23, 23 September 2009 | Mitch6.jpg (file) | 165 KB | 1 | ||
08:55, 28 September 2009 | SRB.gem (file) | 11 KB | 1 | ||
09:48, 28 September 2009 | SRB800px2.JPG (file) | 84 KB | 1 | ||
09:51, 28 September 2009 | Faceting head.jpg (file) | 9 KB | 1 | ||
09:59, 28 September 2009 | Fac1.jpg (file) | 5 KB | 1 | ||
10:37, 28 September 2009 | Fa2.jpg (file) | 4 KB | 1 | ||
10:43, 28 September 2009 | Fac3.jpg (file) | 4 KB | 1 | ||
10:45, 28 September 2009 | Fac4.jpg (file) | 4 KB | 1 | ||
10:46, 28 September 2009 | Fac6.jpg (file) | 4 KB | 1 | ||
10:48, 28 September 2009 | Fa4.jpg (file) | 5 KB | 1 | ||
10:49, 28 September 2009 | Fac7.jpg (file) | 4 KB | 1 | ||
10:54, 28 September 2009 | Fa5.jpg (file) | 9 KB | 1 | ||
10:55, 28 September 2009 | Fac9.jpg (file) | 8 KB | 1 | ||
08:05, 1 November 2009 | Gubelin.bmp (file) | 26 KB | The father of origin determination, Dr. Eduard (Edward) J. Gübelin, (1913-2005), admires a set of gems from his personal collection, which contained more than 5,000 gemstones. Photo copyright of the Eduard J. Gübelin Family | 1 | |
08:48, 1 November 2009 | VPKenia1.JPG (file) | 24 KB | On a 2005 expedition in Tsavo, Kenya, Research Field Gemologist, Vincent Pardieu, visits the late Campbell Bridges, discoverer of the vanadium-bearing and beautiful green grossular garnet, tsavorite, at the Scorpion Mine, Pit #2, for gemological research | 1 | |
08:56, 1 November 2009 | Tsavpotato.JPG (file) | 26 KB | Tsavorite (tsavolite) porphyroblast or “potato with tsavorite eyes” Photo courtesy: Vincent Pardieu | 1 | |
08:58, 1 November 2009 | Tsavsorting.JPG (file) | 39 KB | Research Field Gemologist, Vincent Pardieu, studies tsavorite rough at a sorting station, alongside tsavorite miners and Campbell Bridges. Photo courtesy: Vincent Pardieu | 1 | |
09:00, 1 November 2009 | Tsav.JPG (file) | 23 KB | Collection samples of gem-quality tsavorite from the Scorpion Mine Photo courtesy: Vincent Pardieu | 1 | |
09:41, 1 November 2009 | Gemolite.JPG (file) | 26 KB | Gemological Stereo Microscope Photo courtesy: Gübelin Gemmological Laboratory, Ltd. The gemological microscope is an invaluable tool in the laboratory. By using illumination techniques, the internal characteristics of a gemstone can be examined with th | 1 | |
09:58, 1 November 2009 | UV-ViS-NIR.JPG (file) | 22 KB | UV-ViS-NIR spectrometer Photo courtesy: Gübelin Gemmological Laboratory, Ltd. <br /> This instrument analyzes a full range of spectrum, from the ultra-violet to near infrared. A gemstone absorbs light at a different range depending on its natural or tr | 1 | |
10:07, 1 November 2009 | Ramanscope.JPG (file) | 21 KB | Raman Photo courtesy: Gübelin Gemmological Laboratory, Ltd. This is a light-scattering and non-destructive technique which allows for the identification of inclusions in a gemstone by comparing a gemstone’s spectrum to a mineral database for identifi | 1 | |
10:11, 1 November 2009 | FTIR.JPG (file) | 14 KB | FT-IR spectrometer Photo courtesy: Gübelin Gemmological Laboratory, Ltd. <br /> Infrared spectroscopy measures absorptions of a gem material, due to vibrations in the crystal structure, in the infrared region of the electromagnetic spectrum. The FT-I | 1 | |
10:15, 1 November 2009 | ED-XRF.JPG (file) | 20 KB | ED-XRF Photo Courtesy of Dr. Michael S. Krzemnicki, Director, Swiss Gemmological Institute © Swiss Gemmological Institute SSEF <br /> The ED-XRF, a non-destructive spectroscopic technique, uses an x-ray beam that illuminates the gemstone sample. This e | 1 | |
10:22, 1 November 2009 | LIBS.JPG (file) | 17 KB | LIBS Photo courtesy: Michael Stubelt and New Wave Research Company <br /> <br /> The technique, LIBS, also known as also known as Laser Spark Spectroscopy (LASS) or Laser-Induced Plasma Spectroscopy (LIPS), is used especially for: *The analyses of major, | 1 | |
10:30, 1 November 2009 | LA-ICP-MS.JPG (file) | 21 KB | LA-ICP-MS <br /> (Left side of photograph: ICP-MS, Right side of photograph: LA) <br /> Photo courtesy: Gübelin Gemmological Laboratory, Ltd <br /> <br /> The MS identifies and quantifies elements in terms of mass and charge and can detect 65 eleme | 1 | |
10:34, 1 November 2009 | SEM.JPG (file) | 24 KB | SEM <br /> Photo courtesy: WikiMedia Commons <br /> <br /> The SEMs technique, with additional attachments, can obtain elemental analysis. Polished specimens give a better result, since in rough specimens the variations are due to surface rather than th | 1 | |
04:26, 28 November 2009 | Acorn.jpg (file) | 104 KB | Acorn by Hideki Ikeda | 1 | |
04:27, 28 November 2009 | Easy Bar.jpg (file) | 27 KB | Easy Bar by Hideki Ikeda | 1 | |
06:58, 25 January 2010 | Design contest right.png (file) | 104 KB | 1 | ||
06:59, 25 January 2010 | Design contestleft.png (file) | 77 KB | 1 |
First page |
Previous page |
Next page |
Last page |