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...
Red Trinitite, a Piece of Atomic History
Originally posted on Nature's Rainbows in 2023 by Chris Clemens. Red trinitite is technically not a true mineral, because it was not formed through a geologic process. Rather, this brick-red colored glass-like material was created at 5:29 A.M. Mountain Time on July...
Greenland Hackmanite: Quick Change Artist, Tenebrescent Champion
This article was originally published on Nature’s Rainbow. Tenebrescence of Greenland sodalite is amazing. This is a piece of a deeply tenebrescent sodalite. Note how when the SW light is first turned on the sodalite fluoresces a bright orange but almost immediately...
The Fluorescent Minerals of Greenland
This article was originally published on Nature’s Rainbow. The Ilímaussaq complex is one of the world's most fascinating igneous complexes. The abundance of rare elements has resulted in more than two hundred and twenty-five different minerals and many unique...
Do All Rubies Fluoresce the Same?
A member asked a practical question: do all rubies fluoresce the same way, and if they do not, can weak fluorescence be predicted from the way a specimen looks in daylight? The answer is no on both counts. Rubies do not all fluoresce the same way. Some glow intensely,...
The Definitive Guide to Franklin/Sterling Hill Wollastonite
A regularly recurring question in our Facebook Fluorescent Mineral Group is the differences between the various wollastonites found the the Ogdensburg area (areas around Franklin NJ). If you are a serious Franklin collector you can almost identify what boulder at...
Hyalite specimens from Hungary, Zemplén, Tarcal
Hungary has some really outstanding localities for unique hyalites: Monok, Gyöngyössolymos, and recently Tarcal. Specimens from this locality tend to be the biggest, glassiest and the best from Hungary! The downside is that the andesite quarry uses explosives, which...
Spodumene var. Kunzite Dara-I-Pech
This is the tip of a large kunzite crystal (130 * 30 *5 mm) in halogen light, 365 nm Convoy S2+, and MW-UV respectively. When lighted with halogen from below, through the base of the crystal along the c-axis, the color deepens dramatically, due to pleochromism. The...
Diamonds are forever
Diamonds can fluoresce in almost any color. A little creativity ... and there we are.This article was originally published on Nature's Rainbow by Axel Emmermann.