Why You Should Not Always Shine UV Light on Fluorite
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- Опубликовано: 10 июн 2023
- Contrary to popular belief, there is a reason that shining ultraviolet light on a fluorescent fluorite mineral specimen is not always a good idea. That is, some but not all fluorite specimens can somewhat quickly turn a shallower color or even turn colorless completely after exposure to prolonged UV light. #short #shorts #geology #fluorescent
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This happens to Topaz as well. The orange color of Topaz is caused by electrons in the crystal lattice. Upon exposure to light, they will become excited, bounce around, and eventually leave the crystal.
So THATS what killed my shiny pet rock. I thought I was underfeeding it.
This channel is so utterly pure in its nerd-vibe I absolutely love it!
I think @ChrisVanderessen’s comment below might have out-nerded the channel’s author 😊
Wow I didn’t realize that. I’m a black light artist so I collect fluorescent crystals and minerals. I have a museum quality specimen that I display every event I work. I even tried to make my own pigments but unfortunately I realized that it would take more than a mortar and pestle to get fine enough but to get a good glow it would need unhealthy amounts of Uv. 365nm with a filter is the best long wave Uv for it. The 395nm gives off a lot of visible light and short wave is kinda dangerous to work with
there are some very expensive sieves you can use to isolate grains around that size but they are very expensive and as far as I know only come in sets of lots of sieves
It would be cool to see a mosaic made of fluorescent stones, the pigment idea seems more difficult
@@rorywest4937 of course it’s going to be difficult but that’s the point. Th mosaic idea is definitely part of the equation as well as display cases/ frames that safely switch between different frequencies of blacklight, regular light and different combinations to show that all blacklights are not all created equal
@@Autistic_Artist cool, I'm interested to see how it will turn out 👍
I let a black light sit on a piece of basswood for way too long and it left its glow. Probably just destroyed the glows chemicals. If I get a good piece of black locust or honey locust I need to avoid putting it under uv rays for a week straight.
I noticed this too with my fluorite collection, 2 of them were a very beautiful blue color, but now they have almost completely faded to a light blue-ish white. Thank you for the confirmation
Thank you for that info!
Now, I’m curious about the fact that some types of old glass turns lavender or even purple when exposed to UV light. A lot of old pocket watch crystals do this, too, developing s lavender hue
My father put old bottles on the roof hopi g them to turn purple. I undertood it was the magnisum in the formula but do not know for sure.
It is a photochemical reaction. The glass contains iron and manganese. Ultra-violet light causes electron-exchange between the manganese and iron ions.
This changes the manganese and the glass to turns purple.
@@CricketsBay Thank you!
Aww😔 ok. That's so sad. Thanks for the heads up.
Heating it up to about 100 centigrade has the same effect…
and sometimes with some fluorite it will cause a light emission too called thermoluminescence. But thermoluminescence can only happen to a fluorite specimen once.
Man you are quite a great example of Arizona Education ! Keep sharing
This was very informative! Thanks!
I once saw this done in an opal mine in Coober Pedy South Australia to make any opal close to the surface of the walls of the mine fluoresce, is this the same mechanism?
What he is talking about mostly in the video is the bleaching effect of UV light. but he does demonstrate fluorescence in the video as well. Fluorescence is caused by electron orbitals or hybrid electron orbitals being similar in potential energy to the energy of the wavelength of light shown on it, which causes electrons to change what orbital they are in and release a photon as a side effect of the process. All fluorescence works the same way, and can even occur with visible spectrum light such as green, or infrared light. it can also happen with xrays which is how a lot of lab equipment determines what elements in what percentages are in a tested sample.
@@alexdrockhound9497 Huh, I've never heard about infrared or visible light fluorescence before. Are there any minerals with this property?
@@StuffandThings_ ive got some calcite that fluoresces with a 532nm (green) laser.
Man i love rocks and minerals gems and jewels
Wow I didn’t know that, thanks!!!
My fluorite samples are on a display shelf with a UV light on almost every night. After ten years, there is no obvious change, they are still vividly fluorescent!
Also him: puts it in direct sunlight
yes i washed my beautiful blue flourite away and i learnt a very memorable lesson, it took 2 days leaving it on the window sill
Interesting photodegradation. I would never have thought this would happen. I really like your notation that Fluorite fluoresces...Fluorite...who knew, lol 😅
Does this color loss affect the color or intensity of fluorecence?
I wasn't planning to but thanks for sharing mate
Oh that’s why the typically green fluorite that is underneath the amethyst at the Grand Junction copper mine collecting area is turning white. It’s green fluorite topped with purple amethyst crystals. Some of mine have turned white in the Sun.
I was genuinely expecting you to say it would explode or become radioactive or something.
This must be true. I have watched this clip many times now, and the fluorite samples do indeed seem to lose a little more colour every time!
Bro I love you so much. You rock 😉
Thank you....is this in Yooperlite 🤔
I keep wondering if when I see what I think is quartz, it's actually fluorite, or vice versa. Usually it's on a beach where I notice any.
Flourite is highly reactive to even the slightest hint of acidity, dissolves in water, and it and very soft compared to quartz. If it's on a beach, it's probably quartz.
The gas came out or bacteria
You can make telescopes out of fluorite
Quadrahedral
Then don't take it out at night!! ALL the street lights are not UV/black light now for ... some reason... take some out under the new black light street lights it will fluoresce!
Tells you not to shine UV light, Proceeds to show it in the sunlight.
not to shine UV light SOMETIMES.
thermoluminescent fluorite is even more interesting.
The sun is a discoloring laser
You do know that the sun actually does that right? A little flashlight is harmless compared to leaving them in the sun 😂
Interesting.
Thanks. I was not aware of this before!
Unhealthy is fluorite
Why tf would you shine it on the rocks in the first place
I thought you were going to say excessive UV light will cause some sort of harmful radiation effect. But instead your caution is that the mineral will lose its beauty.
I had a Jade ornament hanging from the rear view mirror for years. When I sold the car, I removed a pale piece of stone. A few summers in the Southwest sun sucked the green right out of it. 🫤