How fluorescence is used to help identify vintage glass 

U have no idea how helpful u are to the people that buy jewelry and make sure its not fancy glass or what not

Do you think the fluorescence of the glass showed at 18:46 is caused by cerium oxide? It is used as a glass decolorizer and usually causes blue fluorescence, actually, there is a company called Smart Elements that sells fluorescent glass beads doped with Ce3+ (they fluoresce blue). Also, cerium oxide (IV) has a density of 7.22 g/cm³ (Wikipedia) which could explain the glass weight. This oxide is widely used as a polisher and its price is not that high (compared to other rare earth compounds). So, I think it a good guess to explaing that glass fluorescence.

Thanks for posting this video. I think you did an awesome job going over the different types of glass. I have found and learned similar things in my adventures in glass collecting. At first there are so many different types of fluorescence and it can be confusing the know the difference. Thanks for laying it all out there!

The 4th piece is Murano.

The Corning Museum of Glass says that lead gives "a strong icy-blue response." I think that explains your glass from Ikea.

I really enjoyed your video I've learned alot from you. I collect uranium glass ever since I inherited a lamp and I'm hooked. I bought a uv light and carry it with me everywhere now. 😊

I've learned so much from you. Correcting a couple of my listings of EAPG that I thought were glowing from uranium.

That cadmium vase steals the show for me. I've been trying to build up a cadmium collection and so far all I have are a few small pieces, nothing even remotely as pretty as that vase... One day. :) And yes, every thrift store run, I bring along my 365nm blacklight. The "does this shelf full of clear glass contain any manganese pieces" swipe is a standard operation by now :')

Because of ur technique u helped me not purchase a fake sapphire cube that when using the light it was like a lime green so i was like thats not even close to being a sapphire

It's radioactive

I thought Your video on depression/uranium glass was the most informative, quick short video for the basics & for beginners who are new to this era of glass, antiquing, or whatnot . I just really enjoyed it. I’ve been wanting in about the different types of light that are on my flashlight that has six lights no I wanted to know what these lights are going to identify or what kind of glasses actually going to shine different colors besides uranium your video was really good just for ‘beginner’ basics. I loved it.

Very helpful. Thankyou. I have a blacklight on the way to me. Lots of glass to inspect. A few pieces of what I believe to be brilliant cut based on the cuts but am still a bit suspect as there is little to no wear on the base. Supposedly, the modern fakes show parallel striations in the cuts from the diamond blades as opposed to smooth surfaces from the old steel blades. All of my pieces seem to be smooth so its going to be interesting to see how the blacklight test goes. I have a celery bowl that has mistakes in the cuts and seems lighter in weight than similar size pieces. I’m very curious to see if that one passes the blacklight test!

One of the best explanations I’ve seen. Thank you.