Latest Discussions
2wI believe most zeunerites from Ojuela mine are a different mineral.Posted by Alejandro Felix Gutierrez. 12 replies.5wunknown from Rush Creek, CA fluorescing bright blue under all 3 WPosted by Herwig Pelckmans. 6 replies.6wFluorescence only in MW UV? Fluorescence under UV outside of LW MW SW?Posted by Herwig Pelckmans. 8 replies.
8wFluorescent or reflective?Posted by phil hammond. 8 replies.
10worange fluorescencePosted by ali heral. 13 replies.
12wBarite from Chengkou Co., Chongqing, ChinaPosted by Nathan Ling. One reply.13wTuscon meeting in 2024?Posted by Patrick Haynes (2).
14wAutunite Dehydration PreventionPosted by Elmore Dickstein. 7 replies.15wObsidian & Uranyl Ion Fluorescent Responses?Posted by Bill Hamel.Dec 2023Wavelength of "mid-range" tube emissionPosted by Howard Heitner. 12 replies.Oct 2023Georgia, Girard - bright white fluorescing opal-AN - activator?Posted by Herwig Pelckmans. One reply.
Oct 2023UV Reactive specimens from Churchill Mining District, Lyon County, NVPosted by Parabellum. 2 replies.Oct 2023Maximum number of different minerals fluorescing in one specimenPosted by Herwig Pelckmans.
Sep 2023⚠15 imagesREE elements and fluorescence spectra of El Hammam fluorite. A comparison.Posted by Adolf Cortel. 25 replies.Aug 2023Rough, sawn or polished, which surface is preferable?Posted by Herwig Pelckmans. 20 replies.
Jul 2023About searching for precious metal salts using 254 nm and 365 nm UV!Posted by serkan yılmaz. 8 replies.
Jul 2023UV Project!Posted by Dana Slaughter. 34 replies.
Jul 2023⚠10 imagesIntense fluorescencePosted by David A Robinson. 12 replies.
Jun 2023Fluorcarletonite fluoresces red?Posted by Kristi Hugs. 25 replies.May 2023⚠19 imagesLuminescent Minerals Challenge: Shades of bluePosted by Martin Stark. 22 replies.
Apr 2023SW and MW UV LEDsPosted by Ronnie Van Dommelen. 11 replies.Apr 2023Rich Purple Florescence under SW UVPosted by Suzanne Cook2. 5 replies.Apr 2023Tips for Better Photo results or set-up?Posted by Suzanne Cook2. One reply.
Mar 2023Calcite Fluorescent in Green!?Posted by Jamie Goodpaster. 12 replies.Mar 2023Best UV Protective Glasses?Posted by Kelly Nash. 10 replies.
