User contributions
(newest | oldest) View (newer 500 | older 500) (20 | 50 | 100 | 250 | 500)
- 08:01, 19 March 2009 (diff | hist) . . (2,363 bytes) . . Amethyst (→Polariscope)
- 07:55, 19 March 2009 (diff | hist) . . (2,157 bytes) . . Amethyst (→Polariscope)
- 07:54, 19 March 2009 (diff | hist) . . (2,062 bytes) . . Amethyst (→Polariscope)
- 07:53, 19 March 2009 (diff | hist) . . (2,048 bytes) . . Amethyst
- 02:47, 18 March 2009 (diff | hist) . . (460 bytes) . . Images:Maw-sit-sit
- 02:44, 18 March 2009 (diff | hist) . . (125 bytes) . . Images:Alexandrite (current)
- 02:43, 18 March 2009 (diff | hist) . . (1,030 bytes) . . Alexandrite
- 02:36, 18 March 2009 (diff | hist) . . (2,347 bytes) . . Feldspar (→Plagioclase feldspar: expanded with info from Scott Davies (id:452))
- 02:53, 13 March 2009 (diff | hist) . . (4,024 bytes) . . m Sea of Cortez pearl (→Treatments) (current)
- 02:51, 13 March 2009 (diff | hist) . . (4,020 bytes) . . Sea of Cortez pearl (updated info from Douglas McLaurin (id: 451))
- 09:48, 8 March 2009 (diff | hist) . . (724 bytes) . . Template:Feldspar (current)
- 09:54, 28 February 2009 (diff | hist) . . (3,540 bytes) . . Dispersion (→Advanced)
- 09:53, 28 February 2009 (diff | hist) . . (3,539 bytes) . . Dispersion (→Advanced)
- 04:05, 26 February 2009 (diff | hist) . . (8,377 bytes) . . Immersion cell (→Plato method)
- 04:02, 26 February 2009 (diff | hist) . . (8,376 bytes) . . Immersion cell (→References)
- 04:01, 26 February 2009 (diff | hist) . . (8,295 bytes) . . Immersion cell (→Plato method)
- 05:31, 19 February 2009 (diff | hist) . . (1,485 bytes) . . Quahog (current)
- 05:29, 19 February 2009 (diff | hist) . . (1,208 bytes) . . Amethyst (→Magnification)
- 07:29, 9 January 2009 (diff | hist) . . (1,046 bytes) . . m User:Doos (→Webmaster) (current)
- 07:29, 9 January 2009 (diff | hist) . . (1,045 bytes) . . User:Doos (→Webmaster)
- 07:28, 9 January 2009 (diff | hist) . . (1,078 bytes) . . User:Doos (→Webmaster)
- 07:39, 6 January 2009 (diff | hist) . . (4,073 bytes) . . Kyanite (→Color)
- 04:58, 24 December 2008 (diff | hist) . . (4,061 bytes) . . Kyanite
- 04:56, 6 December 2008 (diff | hist) . . (470 bytes) . . Jasper (→Scenic jasper)
- 04:55, 6 December 2008 (diff | hist) . . (441 bytes) . . Jasper (added contribution (id:427))
- 04:53, 6 December 2008 (diff | hist) . . (47 bytes) . . File:Scenic jasper.jpg (Scenic jasper. Image courtesy of topsieraden.nl) (current)
- 05:34, 5 December 2008 (diff | hist) . . (939 bytes) . . Jadeite (Addition from Robert Biehl (id:432))
- 05:32, 5 December 2008 (diff | hist) . . (964 bytes) . . Nephrite (addition from Robert Biehl (id:431))
- 03:56, 1 December 2008 (diff | hist) . . (4,837 bytes) . . Specific Gravity
- 04:07, 26 September 2008 (diff | hist) . . (+34) . . Spinel (→Sources)
- 04:59, 20 September 2008 (diff | hist) . . (+1) . . Fluorite (→=Optical phenomena)
- 04:59, 20 September 2008 (diff | hist) . . (+159) . . Fluorite
- 09:09, 19 September 2008 (diff | hist) . . (+143) . . Spinel (→Sources)
- 09:07, 19 September 2008 (diff | hist) . . (+15) . . Spinel (→Refractometer)
- 09:05, 19 September 2008 (diff | hist) . . (+12) . . Spinel (→Refractometer)
- 09:00, 19 September 2008 (diff | hist) . . (+8) . . Spinel (→Color)
- 08:59, 19 September 2008 (diff | hist) . . (+6) . . Spinel (→Refractometer)
- 08:58, 19 September 2008 (diff | hist) . . (+98) . . Spinel (→Refractometer)
- 07:06, 19 September 2008 (diff | hist) . . (-66) . . Topaz
- 10:49, 17 September 2008 (diff | hist) . . (-2) . . Spinel
- 05:49, 17 September 2008 (diff | hist) . . (+67) . . Topaz
- 09:45, 13 August 2008 (diff | hist) . . (0) . . Refractometer (→Construction of a gemological refractometer)
- 08:15, 8 August 2008 (diff | hist) . . (+19) . . Tourmaline (→Treatments)
- 08:14, 8 August 2008 (diff | hist) . . (+38) . . Tourmaline (→Treatments)
- 08:11, 8 August 2008 (diff | hist) . . (+6) . . Tourmaline (→Treatments)
- 07:59, 8 August 2008 (diff | hist) . . (+5) . . Tourmaline (→Treatments)
- 07:56, 8 August 2008 (diff | hist) . . (-25) . . Tourmaline (→Treatments)
- 07:55, 8 August 2008 (diff | hist) . . (+213) . . Tourmaline (→Sources)
- 07:54, 8 August 2008 (diff | hist) . . (+10) . . Tourmaline (→Treatments)
- 07:53, 8 August 2008 (diff | hist) . . (+1) . . Tourmaline (→Treatments)
- 07:51, 8 August 2008 (diff | hist) . . (-31) . . Tourmaline (→Treatments)
- 07:50, 8 August 2008 (diff | hist) . . (+1) . . Tourmaline (→Treatments)
- 07:48, 8 August 2008 (diff | hist) . . (-15) . . Tourmaline (→Treatments)
- 07:47, 8 August 2008 (diff | hist) . . (-25) . . Tourmaline (→Treatments)
- 07:47, 8 August 2008 (diff | hist) . . (+53) . . Tourmaline (→Treatments)
- 07:46, 8 August 2008 (diff | hist) . . (+884) . . Tourmaline (→Treatments)
- 07:22, 8 August 2008 (diff | hist) . . (+73) . . N File:RedTourmalineOval5 32v02.jpg (Heat treated brown-red Nigerian tourmaline. Image courtesy of Roger Dery.) (current)
- 07:21, 8 August 2008 (diff | hist) . . (+73) . . N File:RedTourmalineOval5 32ct.jpg (Heat treated brown-red Nigerian tourmaline. Image courtesy of Roger Dery.) (current)
- 07:20, 8 August 2008 (diff | hist) . . (+68) . . N File:PinkTourmalineOval5 32ct.jpg (Heat treated Nigerian pink tourmaline. Photo courtesy of Roger Dery.) (current)
- 13:08, 29 July 2008 (diff | hist) . . (+16) . . Refractometer (→Optical sign)
- 07:06, 29 July 2008 (diff | hist) . . (+125) . . Refractometer (→Optical sign)
- 03:07, 29 July 2008 (diff | hist) . . (+280) . . Refractometer (→Optical sign: added note ob beta reading)
- 01:40, 25 July 2008 (diff | hist) . . (+93) . . Amber
- 10:53, 24 July 2008 (diff | hist) . . (+52) . . Idocrase (→Diagnostics)
- 10:26, 19 July 2008 (diff | hist) . . (+4) . . Scapolite (current)
- 10:26, 19 July 2008 (diff | hist) . . (-2) . . Scapolite
- 10:25, 19 July 2008 (diff | hist) . . (+501) . . Scapolite
- 01:27, 10 July 2008 (diff | hist) . . (+2) . . Refraction (→Wavefronts (Huygens' principle))
- 01:26, 10 July 2008 (diff | hist) . . (+4) . . Refraction (→The relationship between wavelength and speed of light: changed hour to second .. thanks to Vlad)
- 01:25, 23 May 2008 (diff | hist) . . (-1) . . Melo melo pearl (current)
- 01:24, 23 May 2008 (diff | hist) . . (-1) . . Sphene
- 01:24, 23 May 2008 (diff | hist) . . (-32) . . m Scapolite
- 01:23, 23 May 2008 (diff | hist) . . (-1) . . m Feldspar
- 01:26, 21 May 2008 (diff | hist) . . (+168) . . Lapis Lazuli (added image from americanthai.com (id:222)) (current)
- 01:24, 21 May 2008 (diff | hist) . . (+127) . . N File:Lapis Afghanistan.jpg (Top quality untreated lapis lazuli cabochon from Afghanistan (50.60 Carats). Image courtesy of Scott Davies, americanthain.com) (current)
- 01:21, 21 May 2008 (diff | hist) . . (+19) . . m Synthetic forsterite (→Update)
- 01:21, 21 May 2008 (diff | hist) . . (+120) . . Synthetic forsterite (→Update: added image)
- 01:18, 21 May 2008 (diff | hist) . . (+48) . . N File:Colorless forsterite.jpg (Image courtesy of Scott Davies, Americanthai.com) (current)
- 01:17, 21 May 2008 (diff | hist) . . (+253) . . Synthetic forsterite (addition from Scott Davies (id:221))
- 11:04, 15 May 2008 (diff | hist) . . (+15) . . Immersion cell
- 09:41, 6 April 2008 (diff | hist) . . (0) . . Double Refraction (→Basic: correction by Richard Cartier (submission 171))
- 03:21, 6 April 2008 (diff | hist) . . (-15) . . m Double Refraction
- 02:54, 6 April 2008 (diff | hist) . . (+31) . . N Birefringence (added redirect) (current)
- 02:53, 6 April 2008 (diff | hist) . . (+1,846) . . Double Refraction (additions from Richard Cartier (no. 162, 163, 164, 166))
- 12:20, 4 April 2008 (diff | hist) . . (-37) . . m Iolite (added a <br clear="all" />) (current)
- 13:46, 23 February 2008 (diff | hist) . . (+163) . . Emerald (→Optical and physical properties)
- 13:43, 23 February 2008 (diff | hist) . . (+51) . . Emerald (→Synthetics)
- 03:37, 13 February 2008 (diff | hist) . . (+477) . . Inclusions:Sapphire (→Beryllium-Treated Sapphires: added synthetcis (by Apsara)) (current)
- 03:32, 13 February 2008 (diff | hist) . . (+468) . . Inclusions:Ruby (→Heat treated: added images of synthetics (by Apsara)) (current)
- 12:21, 28 January 2008 (diff | hist) . . (-3) . . m Synthetic cubic zirconia
- 12:17, 28 January 2008 (diff | hist) . . (+4) . . m Synthetic cubic zirconia
- 12:15, 28 January 2008 (diff | hist) . . (+5) . . m Synthetic cubic zirconia
- 12:12, 28 January 2008 (diff | hist) . . (+54) . . Synthetic cubic zirconia (→Diagnostics: added note on anomalous extinction)
- 08:15, 24 January 2008 (diff | hist) . . (+5) . . m Specific Gravity (→Basic)
- 04:49, 30 December 2007 (diff | hist) . . (+244) . . Garnet (→Classification of gem garnets)
- 04:41, 30 December 2007 (diff | hist) . . (+197) . . Garnet (→Hanneman's concept illustrated: acknowledged Anderson and Stockton/Manson)
- 04:34, 30 December 2007 (diff | hist) . . (+1,282) . . Garnet (→Classification of gem garnets: added RI table according to stockton/manson (1985))
- 09:17, 26 December 2007 (diff | hist) . . (+117) . . Taaffeite
- 08:35, 26 December 2007 (diff | hist) . . (0) . . Spinel (→Refractometer)
- 08:19, 26 December 2007 (diff | hist) . . (+201) . . Spinel (→Synthetics)
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