MinerShop Fluorescent Minerals
From Greenland and the World
The Minerals of Greenland and the Localities are a major focus of this web site. Over 200 minerals have been identified from the Ilimaussaq Complex, South Greenland - and over 15 are only found here. Ilimaussaq is the type locality for dozens of alkaline minerals including tugtupite, ussingite, polylithionite, sorensenite, and more. Rare minerals such as chkalovite, leucophanite, catapleite, villiaumite and dozens more add to the allure of this remote "geologist's mecca".
In the past several years this area has become a world-class locale for fluorescent minerals and deeply tenebrescent sodalite hackmanite.
--We specialize in fluorescent minerals from this remote locale--
--We also carry a wide selection of worldwide fluorescent minerals--
--We buy collections--
Localities - Trip Reports and Geology
One aspect of the fluorescent mineral hobby I enjoy is field collecting. I take every opportunity to visit a new collecting locale. Over the years I've visited some very unique places, and have learned quite a bit about the local geology. Locality reports posted here are from my own travels, or written by friends most likely on the same trip.
From 2001 to 2011 I arranged Fluorescent Mineral Tours for groups. Several pages describe many of the new minerals, the geology, and new localities I found on my trips to Greenland and the Ilimaussaq Complex.
Fluorescent mineral photography is a challenge. People (and cameras) usually take pictures of well-lit scenes and rarely have to worry about overexposing an image. When photographing fluorescent minerals the game is changed dramatically. The camera now has to capture vividly glowing, saturated colors in a dark room. Cameras just aren't designed to do this.
Minerals that "glow" under ultraviolet light are fluorescent minerals. These ultraviolet lights - shortwave, midwave, and longwave - illuminate the fluorescent mineral hobby. White light mineral displays are always well lit with bright lights, offering a beautiful range of colors that makes them attractive to collectors. But some minerals have a unique property - a hidden rainbow of color that is only revealed using special ultraviolet lights. Though UV light is invisible to the human eye, these special "fluorescent minerals" react to the UV light by releasing visible light, "glowing" in every color of the rainbow. This property is known as luminescence, or fluorescence.
What is Ultraviolet Light (UV)?
The form of electromagnetic radiation that is most widely used to observe fluorescence is ultraviolet radiation, as generated by a "black light" or ultraviolet lights. Ultraviolet light is that portion of the electromagnetic spectrum that lies beyond the purple edge of the visible spectrum and has wavelengths between 100 and 400 nm.
UV lights are the mainstay of the Fluorescent Mineral hobby. These lights are used in the field to collect these beautiful minerals and are an essential tool. UV lights are not only used by hobbyists to find these treasures but have been used by prospectors in the past to find minerals such as uranium and scheelite - primary ores in high demand (see this blog post for more on radioactive minerals). In the early days of mining at Franklin NJ UV lights were an essential tool in locating the ore veins.
Needed to view our minerals and are the mainstay of the Fluorescent Mineral hobby. They are used in the field to collect these beautiful minerals, and at home to display them. UV lights are not only used by hobbyists to find these treasures but have been used by prospectors in the past to find minerals such as the fluorescent minerals uranium and scheelite - primary mineral ores used for many purposes.