The interaction of the metal component in the glass. Some glasses may contain uranium, but they do not glow under UV due to Violet color under sun light (top), and glows bluish green (bottom) under It glows green under UV, and real uranium It glows green under UV, and real uranium glass. Milky white like a bone china under sun-light. This is NOT uranium glass.Īmber or brown color under sun light, and it glows green under UV. This is pink under sun light, and glows bluish green under UV. So, the right hand one is NOT a uranium glass. Product, which does NOT glow under UV (that means it does NOT contain uranium). This is calledīurmese glass, because its color reminds the sunset of Burma country. Left hand cat looks pink with slightly green under sun light. Either red/orange fluorescence or blue/greenish-blue fluorescence meansĦ) Opaque pink uranium glass (Burmese glass) The fluorescence of vaseline (uranium) glass is always green. Peripheral necklace has light amber color under sun light, and glows orange Anyway, this is NOT vaseline glass, (JUDY LEE in USA). But, manganese also shows either green or orange fluorescence This orange fluorescence is said that it comes from cadmium sulfate The center brooch has an orange color under sun light, and glows orange It glows green under UV, and genuine uranium glass. This glass is non-transparent, and pale-blue color under sun light. This glows green under UV as seen in the right photo, and radio-active. This glass is mostly blue, and slightly green. (I bought these items at one-dollar shop in Japan) It is real vaseline in order to compare the bluish-green one in front.) (In the bottom picture under UV, you will see green glass in the back. Manganese shows either green or orange fluorescence under UV light. Most of the clear blue glass are NOT uranium glass. You may see many items which say "Blue vaseline" in the auctions. Then, the radio-activity becomes almost 1/100 of uranium glass.īlue in the sun light, and glows bluish-green under UV. I assume 10% of potassium is include in the glass, K-40 becomes 10PPM (10gram Having 12 billion half year, and included 0.01% of natural potassium. Is radio-active, due to the potassium-40 (K-40) activity.
This is NOT uranium glass, but maybe, potash (potassium) glass. Green in the sun light, and glows bluish-green under UV. But, I recommend to use black light to determine if its is real uranium glass. That means green is stronger in the edge than other part. Or English product of green uranium glass is a cut-glass, and the green fluorescence comes out from the edge of the glass. Is impossible to discriminate under sun-light. This green color also comes from small amount of eitherĬopper compound or chromium, and not limited to uranium. Produced mass of green uranium glass is maybe 1/10 compared with yellow Right-hand photo shows white color at the top, due to heat treatment. In that case, it is difficult to discriminate under sun light, because its edge is round. Most produced color of the vaseline glass is transparent yellow. It is the transparent glass which you can see through, and its color is mainly yellow but slightly greenish. If the glass is a cut glass (where its edge is ground by the grinding machine), and when it is under sun light or ultra-violet light, the characteristic green fluorescence comes out from the sharp edge portion, But, most yellow vaseline glass is a pressed glass. Do not look UV light closely for long time.)
Radium glass vs uranium glass portable#
Or blue/greenish-blue fluorescence means NOT vaseline (or uranium) glass.Ī portable ultraviolet rays lamp is so called a "BLACK LIGHT",Īnd you can buy in a large electric appliances store. (Although the radiationįrom uranium atom in vaseline glasses is negligibly small, UV light is In other words The fluorescence of vaseline glass is always green. And its green color can not be changed by anyhow, even if mixing with other color glass. This green light wavelength (550 nano-meter) is unique to the uranium atom. The atom instantly releases its activated energy as visible light of green color. When the uranium atom absorbs the energy of the ultraviolet(UV) rays, it is activated by the UV energy. In USA define "vaseline glass" only for these clear yellow or These clear yellow or yellow-green glass, sometime in 1930s. Then, the nickname became a "Vaseline glass" for That the original color of vaseline petroleum jelly (salve) was a strange It is said that the name of "Vaseline glass" came from the fact The uranium glass is described by its color. Here, the members of JUGCC (Japan Uranium Glass Collectors Club) have contributed This is a basic requirement of all vaseline/uranium glass collectors. Glass)", and "What is genuine vaseline glass and what is not?" This home page describes "How to discriminate vaseline glass (uranium Colors of Vaseline Glass (Colors of Unanium Glass)
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