Blue Light Fluorescence – Who needs UV anyway?
Originally posted on Nature's Rainbows by Graham Fraser. We all are familiar with fluorescence caused by UV. But an ordinary blue light (blue LED) does a pretty good job when combined with some yellow glasses to block the blue and let through the other colors. A very...
DIY: Converting a Work Light into a Portable Short Wave Lamp
Originally posted on Nature's Rainbows by Michael Isaacson in 2015. Electrical work is dangerous. Do not attempt a project of this nature without a strong understanding of light fixtures, wiring, and electrical safety. I'm not sure how many people have built the 18...
Constante Mine, Santa Marta, Badajoz, Extremadura, Spain
Originally posted on Nature's Rainbows by Daniel C. Montero. Santa Marta is a new location for fluorescent minerals in Spain. It is also home to the Mugemisa geological and mining museum where you can visit its "Sala negra", the largest in Spain where fluorescent...
Fluorite and its different responses under UV light
Originally posted on Nature's Rainbows by Daniel C. Montero. The classic fluorescent mineral, but all fluorites are not luminescent under UV! Showing here some fluorites with different responses under long wave UV. Green visible Blue fluo from Gloria 1ª Mine, Córdoba,...
Fluorescent Calcites from my collection Show under UV MW-LW-SW-NL.
Fluorescent Calcites from my collection Show under UV SW-MW-LW-NL.
2017 FMS Midwest Chapter Annual Meeting
Originally posted on Nature's Rainbows in 2017 by Chris Clemens. The Midwest Chapter of the Fluorescent Mineral Society (FMS) held its first annual meeting at the Ben E. Clement Mineral Museum in Marion, Kentucky, on Saturday, September 16th. This location was chosen...
Franklin Super Diggg 2017, Trip Report
Originally posted on Nature's Rainbows in 2017 by Chris Clemens. The promise of this year’s Super Diggg on April 29th was too tempting to resist- over six million pounds of Mill Site rock material, purported to contain copious amounts of rare fluorescent Parker Shaft...
Biofluorescence of the Monarch Butterfly
Originally posted on Nature's Rainbows in 2018 by Chris Clemens. As a biologist, my interest in entomology predates my fascination with fluorescent minerals by decades, so it was only natural that when my wife Kristine and I found some monarch butterfly eggs last...
Not all adamite is created equal…
Originally posted on Nature's Rainbows in 2018 by Chris Clemens. …at least not in terms of fluorescence. As is the case with many fluorescent minerals, different specimens of the same mineral species can show tremendous variability in fluorescent response, even among...
Diamonds
Originally posted on Nature's Rainbows in 2018 by Chris Clemens. Approximately 30% of all diamonds show a fluorescent response under UV. In most cases, the fluorescence is brightest under long wave (365nm). The fluorescent response is activated by a complex interplay...









