Photo Gallery | Fluorescent minerals from around the world

Fluorescent Mineral Photo Gallery

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Crack that Rock!!! (You never know what's inside)

Seems to go without saying for most experienced fluorescent mineral collectors; rocks that sit exposed to the elements for millennia ...

Franklin-Ogdensburg Minerals | A Tale of Micromounts, Fluorescents, Gems, Giant Crystals and Species

There is a giant project being worked on by some of the most active (and knowledgeable) people in the fluorescent mineral hobby - a book...

Comparison of 365nm Flashlight to 390nm Flashlight

A friend of mine bought a 385nm to 395nm 100 LED flashlight (presently being sold on Amazon: https://www.amazon.com/uvBeast-Intensity-Fla...

Is there a fluorescent mineral that will allow one to distinguish between different UVA wavelengths

A recent discussion on Facebook evolved about using a mineral to determine if an LED is 365nm or 405nm. The result of the discussion was...

Tenebrescence Experiments, Theories, Questions, and even some Facts

Recently I posted a question about Afghan sodalite (hackmanite) after reviewing the MinRec article about Sar-E-Sang. Someone reminded me...

Ozone - what's that smell??? Is it bad? How do I get rid of it?

(NOTE: This blog post was archived from the Facebook Fluorescent Mineral Group) Graham F: I bought two of these (bulbs) to make a display...

Examples of some excellent Fluorescent Mineral Displays built by our members

Over time folks have posted pictures of their own fluorescent mineral displays in the Facebook FMS Fluorescent Mineral Group. These are...

Everything you wanted to know about fluorescent minerals, but were terrified to ask.

In January 2015 Bob Oblack (FMS member #1915, Molalla, Oregon) gave an excellent presentation to the TUALATIN VALLEY ROCK AND GEM CLUB in...

The Rock Cycle Illustrated

Although not specifically fluorescent mineral oriented, these graphics are a great illustration of how our rocks are created. Just add...

Cheap Shortwave Mineral Lights on Ebay (and other places) - BUYER BEWARE!

This needs to be said. Over the years a few disreputable sellers have been marketing a little 4/6 watt shortwave light for fluorescent...

Does your Hoya Shortwave Filter have White Scum Disease?

Graham Fraser on April 3 Graham Fraser posted a significant discovery on Facebook which is worthy of documenting here in the blog. The...

Blue Light Fluorescence - Who needs UV anyway?

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...

A Short History of Fluorescence

Dr. Beniamino Barbieri (of the Fluorescence Foundation) gave a lecture on the history of fluorescence, and published his slides here:...

Catching the Afterglow - Taking Pictures of Phosphorescent Minerals

Many minerals exhibit an “afterglow” when the UV light is turned off. This glow can last for milliseconds or hours depending on the...

Photographing Esperite (and other "hard rocks")

Photographing esperite and other difficult fluorescent minerals

The Fluorescence of Elemental Sulfur- Real or Perceived Phenomenon?

Mark Cole: There was a post in the fluorescent mineral group about sulfur fluorescing a dull green under SW on a piece of calcite from...

405nm Laser Pointers - Mega-thread from the FLM FB Group

A large thread developed discussing 405nm laser pointers and their use with fluorescent minerals. The text content is copied below. The...

What is Tenebrescence? (All about Hackmanite - Hint: it's not fluorescence)

In the early 1800's geologists noted that some specimens of sodalite from Greenland exhibited a bright pink color on freshly broken...

Ballasts to drive fluorescent bulbs/tubes

Our UV lights are mostly based on fluorescent bulbs. These bulbs require a special ballast to operate. Lots of folks buy surplus...