Some recommendations: Many kinds of amber are not merely fluorescent but also phosphorescent. You can check by closing your eyes while the light is on and opening as soon as you turn it off. Putting the sample in the freezer, or better yet cooling it with liquid nitrogen will dramatically extend the phosphorescent glow lifetime by leaving the unpaired electrons in the excited triplet state stuck there without the availability to absorb thermal kinetic energy to flip the spin and allow the electron to relax back to the ground state. Also, if you are really into this stuff I HIGHLY recommend getting a quality 365nm true UV LED with a proper zwb2 filter to look for fluorescence. The 400nm LEDs here just totally wash everything out in purple, but the filtered 365 light is DRAMATICALLY better at viewing everything. A good pair of UVEX clear UV blocking goggles would also let you see the true colors of fluorescent things unlike the yellow goggles.

I guess I should check all of my rocks that I thought could be amber

The word for electron and electricity comes from the latan word for amber, electrum. People in ancient times used it as a bearing material with wooden looms and got shocked by the static electricity produced. Got that gem from Tim Hunken's great series - The Secret Life of Machines.

The sales of uv flashlights just went up! Here in Texas, we use them to hunt scorpions... It's actually fascinating to see just what fluoresces around your house at night. Just be sure to wear eye protection, because it's a little addictive, and you might spend a couple hours staring at things that glow. It all started with blacklight posters from the 70's... 😵‍💫

The sodalite sample at 7:36 is really beautiful when fluorescing under UV! Fascinating.

That broad cast, lower power light is great for avoiding/catching scorpions. I'd also like to point out that that "tranparent rock" appears to be Citrine. It is a quartz crystal that has a metallic contaminate that turns it yellow to orange and is quite prized as an alternative to Topaz.

These lamps are also a good way to detect fraud. When I got one of these, I immediately went ahead and tested them on a few amber souvenirs that I had laying around. As it turns out, only about half of them actually were fluorescent. The worst one was an amber necklace which my great-grandmother once bought for over a thousand Deutsche Mark. As it turns out, that was some expensive plastic.

I played with my rock collection and I was blown away to find that I had a good amount of florescent rocks and then had fun photographing them as a group on my table. It's so facinating to me. Nature is awesome

Unusual. The UV lights and the anti-UV safety glasses were as represented. Would an IR detector also notice the output from amber being irradiated with UV? You mentioned the translational vibrations between outer orbitals. Tx for the northern gold lesson!

And once again a masterpiece of science video! I just want to thank you for your efforts put into those videos. Those videos are the reasons why my interest in science sparked again. I love it and your content! Please stay safe and healthy in those uncertain times

I need to get a spectrum analysis tool, I have a UV laser and a UV LED flashlight. They both make ravewear and neon things fluoresce, but the laser diode does not cause scorpions to light up, while the flashlight does Sorry for my spelling :)

Have you used one of the filtered UV flashlights? They emit 365nm UV and have black lens filters that block all visible light generated. The UVBeast is an excellent choice, it's about $40 and puts out 20 watts of 365nm UV, it heats up anything it's pointed at it is so bright.

A Geological video? Your depths of science never cease to amaze! Practical and Enjoyable!

Fyi: UV glasses dont need to be orange. A lot of clear plastics block UV (both 395 & 365) just fine. In fact you dont even need to get spesific UV rated clear glasses as the majority of generic safety ones do the trick.

Very Cool. Thank you for the great explanation on how Amber Fluoresces. Also, enjoyed how you tested the glasses.

Time to put on sunglasses and watch the video!

I still love your unique way of explaining after years of following you. Thanks!

Wow, you have such a calm voice and explain really well! Your videos are super interesting! Thank you :)

This is similar to how quantum-dot TVs work. And I find it fascinating.

Interesting - I never new that amber Fluoressed - I'm used to other minerals such as zinc ores and others that are quite impressive under certain UV lights. (There's actually a mine in Franklin NJ that offered tours - and to see the walls of the mine light up with low level UV light is fantastic!)

Thanks for making these video. They are a joy to watch 👍

Wow! Your videos are amazing and beautiful! Very well done!

you sound super nice and your fun to watch keep up these videos!

This is masterpiece. Thank you for your efforts. I did enjoyed it and got some inspiration to do my own research about Amber. Best wishes.

I love florence! With UV light it brings out the hidden beauty otherwise unseen

Been a long time viewer, love your videos.

Your videos are the best!

it is impressive the way how to make the boring things so amusing. thank you for this amazing video

so interesting! very good explanation of fluorescence

Great presentation. Thanks for the insight.

Very interesting, great job! Subscribed

7:56 WOW. That looks freaking amazing.

Det er nogle rigtig gode og lærerige infomation du kommer med. Mange tak og god aften til dig :)

Protective glasses that actually work!?

this is a very different kind of video, way cool! thanks!

I have a 365nm flashlight and my regular prescription glasses (with extra blue filter (purple tint)) blocks it out completely. So when I example shine the light on snow I can only see what is fluorescent in the snow, so there is no UV reflection. Do not get the yellow protection glasses if you plan to see what is emitting blue fluorescent light, since it blocks it out. I also ordered cheap blue light blocking glasses (has the purple tint) for kids on aliexpress so they can join the fun.

Thank you sir very helpful I like how you’re very thorough keep up the good work I enjoy your videos very much thank you

Yeah, I've used my UV flashlight to find a bit of amber on a local beach. However, I noticed that some types of seaweed also react strongly to UV with a similar color. And of course some plastics too.

Great Video as Always! 👍

Cool video, I never knew amber was fluorescent.

So inspiring. This really makes me want to get a cheap light bar and replace the white LEDs with UV, and put it on an atv. I wonder what the forest would look like flood-lit in UV? Maybe I'd collect all the glowing rocks to put in a garden with a UV solar lamp to make it glow at night.

Such glorious beauty in this place we find ourselves existing. Setting aside any beliefs or opinion as to it's origin, how could anyone not be in awe at this and countless other beauties? Lovely video and thank you!

(quietly begins counterfeiting 'gold of the north' with turmeric powder)

Super interesting, thank you 😊

I’m glad the products all held up under test with flying fluorescent colors. :-)

Awesome I love watching the stuff

I want a countertop made of that last sample. It looks gorgeous!

Hello bro,your videos are soo good,i like that accent.

7:53 damn, yea, that definitely is beautiful!

7:45 my god why didn’t I know what this looked like this is beautiful

6:15 Think of that mechanic like a gearbox in a car, it turn high speed rotation (high energy UV photons) into a low speed rotation (visible photon).

Cool. Thanks for sharing.

Very helpful thanks 😊

Your voice is very soothing 😪

That shot at 8:00 is just _gorgeous_

Thank you for sharing

beautiful, thanks for exploring the natural beauty of amber and other naturally fluorescent rock.

bro you got me nostalgic with that treelands music

this is amazing!!!

At 2 min 10 sec to 2,13 the beams from the two sources seem to "stick together". Like they won't let go of each other. I have seen that in a sunrise too, where it did not want to let go of the ocean. Is this our mind playing tricks on us? Big fan by the way. Ser alle dine videoer :)

But the question is: how much amber do I need to find to cover the cost of this equipment?

Now we just need to know where to by those safety glasses that work, and the small flashlight

Those are impressive glasses.

The last bit, the lava one, would look cool as a table with lights like that in it that can be turned on or off

Can you do a video on many different kinds of florescent rocks that can be found in your backyard? We have a patio deck and we put rocks below them. And I took my blue laser outside one night to do some wood burning in the nice cool summer weather. And I noticed that the rocks, pretty much all of them had this orange glow on the edges. But when you turn the light off they don't glow and you can't see any paint or anything of any sort on them under normal light from a flashlight or anything. These rocks were bought from a mass rock company where they take rocks from a copper mine or canyon and grind them up and sell them as rocks or gravel. I would love to know what was on these rocks and why they glow an extremely bright orange color. I noticed it wasn't just on the rocks as I shined the diverged beam on the concrete and leaves on the ground. This orange was in streaks on the concrete and also on leaves on the ground. Not all of the leaves had the color but a lot did. I also went inside and saw the same color but in very tiny pieces of fabric on the carpet. I could only see this color with my blue laser safety glasses on. Without them on I couldn't see any of this orange color. Could you do a video on this particular phenomenon or subject to help answer this very strange question and phenomenon? I've tried searching the web for this info, but it appears it doesn't exist because nobody has covered it. Or maybe I'm looking in the wrong places. Great video by the way, keep it up!

Great video! Do you think you could measure the luminescence spectrum of amber with your spectrometer?

Hello. Great video. I just wanted to say, here in Michigan we have rocks ( sodalite-rich syenite rocks in Michigan ) that contain florescence. (AKA Yooperlite) Yooper is a native word, meaning upper peninsula of the state. These rocks are sodalite-rich syenite rocks that also glow under UV light. It’s nice to now know, the glowing is due to the excited state of the electron and losing energy in the form of light. Oddly, it’s the same color as the amber in most cases, but some do vary in color. So, I’ll assume the energy released is different in some, for reasons I’m sure you know.

We use the same LED flashlights here in Nevada USA to spot scorpions. They fluoresce under black light.

Thank you

Thank you🌹.

Another amazing video mate. Can you tell me why your UV light shows the spot's on the Banana but my same Nm LED torch doesn't? A mystery for me it is.

I do biology field work , and we use these flash lights to search for scorpions at night. They glow very bright. Makes finding them easier. Great video!

I love this channel

I really Thank you for your videos, they are great and filled up with many information, would you please let me know what was the hardware and software did you use to measure the light wavelength.

could you show us other natural things that fluoresce under UV light? maybe just going for a walk in the wilderness and shining it on everything we might get some real surprises! And you could go into the forest, to lakes and rivers, maybe some meadows.... And OF COURSE go to some places with different types of rocks... (I KNOW you have more than clay and mud lol.. right???) I think it would be SUPER MIND BLOWING!!! And now that it is Summer time you will get some real results compared to the rest of the year! What do the rest of you guys think? Sound like a cool video?? :)

I've purchased many UV lights for rock hounding. You will notice them even more and from farther away with the "Convoy C8" 365nm UV. It's a lil pricey ($100) but it is the best 365nm UV out there. It will fluoresce objects 70-90ft away with only a single LED. My much larger 3-LED "uvBeast V3" 365nm with 3 LED's, only fluoresces objects 50-60ft away. The uvBeast V3 is still is an awesome light and beats 99% of the UV lights out there.

I wonder how widespread that Greenland rock is. Can you imagine if there was enough of the rock to be cut into counter tops? By day, marble, by night, rave party!

Would have been nice to see how much regular Danish seashore has amber bits mixed with the regular rocks. Would guess not much but still...

I am on my way back home from vakation at Fjellerup strand and i found a five gram peice of amber while snorkeling

I guessed right. Left sample is amber. And i know name of right side sample - it is yellow or "honey" agate. In childhood, playing in sandbox we named such agates "sun stones" and hight valuing it as child treasures. I'm still keep one with milky yellows and light oranges growth layers.

I've seen a video once of people bringing a uv flashlight to a rock beach at dusk and some of the rocks had that lava looking glow (7:56).

That's why some types of amber look blue under sunlight

Great video, we love Mother Nature especially when she shows off Great video 2x👍👍 Some really good (and really bad (filled)) Ruby also have strong UV fluorescence. Along with many other gems. Some even glow for a short period after excitement, I belive the Hope Diamond can do some weird colour changes.

Nice👍

Really cool

Really hoped you would show a clip looking for amber at a beach at night or something with the equipent you showcased

Brian, don't you have samples of Uranium? It also emits visible light under UV light...

You should probably mention to be careful on the German side of things, there is a lot of phosphor on our beaches that can be mistaken for ember.

phosphorus, (is your answer) I learned about this in the 8th grade, there is an explanation, sometimes we don't make it known worldwide for free. Your welcome Brainiac75

Love your channel. Reminds me of vsauce! Happy I found this channel!

Just imagine how incredibly different the world would like like if our eyes were allowing us to see a wider spectrum of colors. It would be mind blowing and disturbing all at the same time.

King of the North!

i enjoyed the music

Phenomenal florescent phenomenon

My normal eyesight glasses (transparent)block almost all uv light. I tried both with 395 and 365nm, when I shine the lights on fluorescent material with my glasses in front, the fluorescent material doesn’t react at all.

Wow, I wish I had equipment like that.

Thanks for the useful videos. Would a 365 uv light be better than 395? In which case would use which one of them?

Very interesting video. I was wondering during it how he found all these samples. Fake amber would be pretty rare (at least I hope), so how do you get it?

Nifty ! But you forgot to make a dinosaur while you were at it. 🤪

yeah picking up the amber piece is the most telling :)