Plutonianfire

Please see attached photos of four marbles with classic blue swirls on a white or off-white base that showed up at the Marble Connection Lost and Found and are desperately trying to reconnect with their families.. Scouts from Alley, Cairo, Champion, Heaton, Peltier, and Ravenswood are standing by pending presumptive identification by the experts.

Closest I can conjecture the marble in these photos is an ALLEY Swirl or a MASTER sunburst

Oh lord, it was a Pelt that I pasted, not an Akro! Sorry Steph. That’s what happens when you work from home and take occasional breaks to pursue an avocation.

I think you must have missed my comment saying that I agreed with your ID of Akro.

Vitro Hybrid? Thanks for ID. Will have to read about them this weekend.

Please see photos below.

Also, the camera flash can significantly change the color hues.

I agree. Another photo from above: The photo below is from Popular American Marbles:

Please see attached photos of what might be a Peltier Peerless Patch.

With the $10 UV lights you may not be able to find specifications. However, the $35 UV flashlight that I have shows the wavelength on the casing. I primarily use it for collecting fluorescent rocks. Please see photos below.

I really think the Heaton UV issue is related to the type of UV light used. Strikingly at least two of my Heatons PHOSPHORESCE at 395 nm with run of the mill UV blacklight without visible light filter and FLUORESCE at standard 365 nm long wave UV with visible light filter The blue swirl at 395 nm (phosphoresces over about 1 to 2 seconds) The blue swirl at 365 nm long wave UV. Fluorescence. The blue swirl in visible light

Maybe? At least as close as Alley.

Changes from Blue to Green

The collective amount of expert knowledge on this website is phenomenal. I’m guessing that I’ve seen nearly a dozen different criteria used to facilitate identification if WV swirls … with the caveat that, even then, in many cases a WV swirl often still can’t be narrowed down to fewer than two or three companies.

I know that’s the “party line” but from my (admittedly naive) perspective I’m not sure that every West Virginia marble company made the exact same shade of blue marbles with the exact same swirl patterns. If it’s possible to eliminate even one marble company it seems like you’re much closer to identifying the most likely manufacturers. I haven’t heard of any software that compares definitively known WV swirls with an unidentified marble to arrive at the most likely match based on seam style, size, primary color hue, swirl pattern, relative amounts of color (eg, coverage of blue vs white on the marble), etc. However, it should be possible … using Bayesian methods.

Please see attached photos of what appears to be an Alley Agate blue swirl

Please see attached photos showing blue swirl with color hue and swirl pattern very similar to Jackson blue swirl at the following url: https://marbleconnection.com/joemarbles/1Marble Picture Pages/11Jackson/Jackson 003/1 Jackson Large Pages/Jackson Marble Company 3-20.html

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Please see attached photos of marble that you weren’t sure about. Size = 0.60 in.

Good point. That’s why I showed the the different colored fluorescence patterns at 365 nm long wave and 254 nm short wave using two marbles that fluoresce differently at long and short wave.

395 nm is so close to lower end of visible light range that there is marked “contamination” with visible light that dissipates the ability to see a UV effect. The short article at the url below is entitled “What is the difference between 365 nm and 395 nm UV led lights”. Information should be helpful, especially the figure showing spectral ranges at 395 nm vs 365 nm. https://www.waveformlighting.com/tech/what-is-the-difference-between-365-nm-and-395-nm-uv-led-lights

A bit more complicated than that. Please see Bill Lockhart’s article explaining the process in relation to the color purple: https://sha.org/bottle/pdffiles/TheColorPurpleLockhart2006.pdf Bill has created the online "ENCYCLOPEDIA OF MANUFACTURERS MARKS ON GLASS CONTAINERS” for the purpose of bottle dating and dating of archaeological dig sites. FWIW, I wrote a chapter for Bill’s Encyclopedia detailing how West Virginia glass house bottle marks could be used to date bottles … and marbles found in the same places. https://sha.org/bottle/pdffiles/OwensBottleCoPart2.pdf Also, please see the following url: https://sha.org/bottle/colors.htm

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