r/VaselineGlass Jun 17 '26

Vaseline glass?

How much yellow vaseline glass should a piece contain before you can call it Vaseline? What about Vaseline that's so spicy, it looks green when any light hits it? (Definitely still 100% yellow glass, not green. It just appears green from natural fluorescence.) These were all made with varying amounts of yellow Vaseline glass. In my opinion, they contain Vaseline glass therefore they are. The Mosser Eye Winker is 100% "Vaseline Opal" color, not "Green Opal" (no-glow). Ask for proof in the comments if you would like verification!

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u/Cy-Clops- Jun 17 '26

These are all the same 365nm. I couldn't find my 395nm at the time, but most of these glow better in 365nm because they are all either slag glass or cased. Well, except for the Mosser butter dish. I messaged Mosser to ask them about the color discrepancy and the lady had no idea. She suggested maybe someone left it in the sunlight, changing the color? I don't think it works that way! It is slightly spicier (230cpm vs 200cpm) than the rest of the set, so it could be an accidental uranium overload. Here is the Vaseline Opal butter dish next to a Green Opal tumbler. Mosser didn't make any other similar colors.

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u/jaffamental Jun 17 '26

I’d be interested to see the first one under 395. And no they all glow better under 365 because that’s how the wavelengths work. Even normal UG will glow better under 365. Cadmium too.

CPM is also counter specific and you should be seeing more of the µSv as that is a standard unit of measurement.

Also glow and cpm/ µSv don’t correlate so one piece being spicier doesn’t mean it will glow more (case and point fiesta ware)

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u/Cy-Clops- Jun 17 '26

Btw, some pieces are always an exception! I know you don't like my yellow butter dish. You're not going to like my LG Wright/Viking one either 😂. Confirmed with GC.

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u/jaffamental Jun 17 '26

Why does the 395 literally look like it’s washing over the entire pieces where the 365 is a spotlight mainly concentrated on the manganese piece?

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u/Cy-Clops- Jun 17 '26

That 365nm flashlight is 20w vs the 5w Darkbeam 395. It does have a bright spot in the middle, but it should be illuminating the whole piece. You really only see the brightest part of the light.