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Latest Discussions
3wWhite fluorescence in calcite?Posted by Allan Ryan. 5 replies.
9wObsidian & Uranyl Ion Fluorescent Responses?Posted by Bill Hamel. 20 replies.
10wOR - Summit Rock - SW fluorescent - Orange - Prismatic xx + Is there a trick?Posted by Herwig Pelckmans. 6 replies.
11wFluorescence as a property listed in mindat?Posted by PETER J MODRESKI. 12 replies.
Dec 2025About 100 pounds of Sterling Hill material, or "How a fluorescent mineral collector lights a fireplace"Posted by Mark Andrews. 9 replies.
Apr 2025Daoping mine Hawleyite -- LW UV FluorescencePosted by David Fryauff (2). 8 replies.
Mar 2025luminescence of calomelPosted by Herwig Pelckmans. 22 replies.
Mar 2025Inclusions? hydrocarbons?Posted by Niclas Forsmark. 3 replies.
Jan 2025Orange fluorescent unknownPosted by Howard Heitner. 3 replies.
Jan 2025ThulitePosted by Ranger Dave. 16 replies.
Dec 2024List of intrinsic luminescent mineralsPosted by Herwig Pelckmans. 27 replies.
Dec 2024Elements - Luminescence issue - recommendedPosted by Herwig Pelckmans. 2 replies.
Dec 2024fluomin.org?Posted by Martin Stark. 9 replies.
Sep 2024SW and MW UV LEDsPosted by Ronnie Van Dommelen. 15 replies.
Aug 2024Allophane fluorescencePosted by Georg Graf. 5 replies.
Apr 2024I believe most zeunerites from Ojuela mine are a different mineral.Posted by Alejandro Felix Gutierrez. 12 replies.
Mar 2024unknown from Rush Creek, CA fluorescing bright blue under all 3 WPosted by Herwig Pelckmans. 6 replies.
Mar 2024Fluorescence only in MW UV? Fluorescence under UV outside of LW MW SW?Posted by Herwig Pelckmans. 8 replies.
Mar 2024Fluorescent or reflective?Posted by phil hammond. 8 replies.
Feb 2024orange fluorescencePosted by ali heral. 13 replies.
Feb 2024Barite from Chengkou Co., Chongqing, ChinaPosted by Nathan Ling. One reply.
Jan 2024Tuscon meeting in 2024?Posted by Patrick Haynes.
Jan 2024Autunite Dehydration PreventionPosted by Elmore Dickstein. 7 replies.
Dec 2023Wavelength of "mid-range" tube emissionPosted by Howard Heitner. 12 replies.










