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...
"The Mineralogy of Franklin and Ogdensburg, New Jersey" by Vandall T. King (Editor) et al. is a comprehensive three-volume book series represents the definitive modern compendium of the mineralogy, geology, and history of the Franklin and Sterling Hill (Ogdensburg)...
Originally posted on Nature's Rainbows in 2017 by Mike in Manassas.It was o dark thirty on a fall Saturday morning as three fluorescent mineral collectors set off from Manassas, VA for Fairless Hills, PA. Two of us (John and Pat) live in the area and will be...
Originally posted on Nature's Rainbows in 2018 by John Smith. In early September 2018, after it looked like my grandchildren’s parents were required to prepare for a U.S. Government shutdown on the first of October, I cancelled my plans to take the grandchildren to...
Esperite is one of the most difficult minerals to photograph. The bright yellow of Esperite is very close to the bright green fluorescence of Willemite. The two together general blow out the exposure on most every camera. Most of the time, the esperite tends to look...
This article was originally published on Nature’s Rainbow. Over the years I've had requests for lighting controllers that would allow us to remotely control our different wavelength lights, as well as cycle through the lighting automatically, turning them on/off at a...
Experiments on Ultraviolet Light and Fluorescence are performed by James Lincoln for the AAPT Films Project. Also explained are the three colors of UV and phosphorescence.
A good introduction to UVA (longwave), UVB (midwave), and UVC (shortwave). The focus of the video are the UV tubes or bulbs mostly used in the past as UV lights. With some considerations of uses and safety. Today, most of these lights are replaced by LEDs, in...
An old video with a quick explanation of the light spectrum and why 365nm is important to us as fluorescent mineral collectors (as well as filters) compared to 385nm LED lights (without filters). Of course this video is trying to sell something: a 365nm LED light for...
Dr. Beniamino Barbieri (of the Fluorescence Foundation) gave a lecture on the history of fluorescence. His slides are reposted here (w/ permission), where they can easily be found by our mineral folks. This was written mostly towards biologic fluorescence, but...