In thermoluminescence, heat is not the primary source of the energy, only the trigger for the release of energy that originally came from another source. It may be that all phosphorescences have a minimum temperature, but many have a minimum triggering temperature below normal temperatures and are not normally thought of as thermoluminescences.
Thermoluminescence is phosphorescence triggered by temperatures above a certain threshold. This should not be confused with incandescence, which occurs at higher temperatures. In thermoluminescence, heat is not the primary source of the energy, only the trigger for...
This article was originally published by Stefano Buzzoni on Nature's Rainbow.This kind of fluorite was well described by Robbins (1984). “...This material is opaque, and greenish or gray in daylight. Under long wave, the fluorescence is violet. Under short wave, the...
While experimenting with Afghan sodalite, and after discussion on the Fluorescent Minerals Facebook Group, I decided to try Greenland sodalite and see if it was thermoluminescent. That was the natural question raised by members of the Facebook group. Very interesting...
I was preparing for a photoshoot tonight, cleaning the specimens of all the lint and hairs that tend to accumulate on them. I was using a MAP torch to lightly burn the little buggers from all the nooks and crannies (a hint learned from the Fluorescent Mineral Group on...