Production resumed in 1958, but depleted uranium was now used. When this is done, the glass turns a bright flourescent green. This chapter is about how to buy the correct kind of black light. Comments. The yellow tint of this glass led to the nicknames “Vaseline glass” and “canary glass.” Under an ultraviolet (UV) or “black” light, the uranium causes the glass to glow bright green. In the 1920s this glass was called vaseline glass because it resembled the color of the popular petroleum jelly sold at the time. The iridized pieces are far less common and will command much better prices than pieces without iridescence. Science class tells me that uranium is radioactive. Often, people use the term Vaseline glass synonymously with Uranium. My dad collects all sorts of antiques, and my mom really likes old glassware, so we have a lot of depression-type and carnival glass in our china cabinets and secretary bookcase. Vaseline glass is glassware that is made with uranium content to give a pale yellow green colour similar to that of petroleum jelly. It is easy to find green and other colored glass that is quite dull in black light - look at green glass coke and 7-up bottles. 2% Uranium Dioxide to the ingredients when the glass formula is made. Either red/orange fluorescence or blue/greenish-blue fluorescence means NOT vaseline (or uranium) glass. So black light is the test. Sometimes, even the most trained eye can be fooled by a piece of glass that looks like Vaseline Glass, but will not glow or fluoresce bright green under a blacklight. When you place a piece of glass you believe to be vaseline in a dark area and illuminate it with a blacklight, it should fluoresce bright green. Shine your UV light on the glass piece and look for a neon green glowing color. Both green Depression glass and Vaseline glass will glow under a black light due to the uranium oxide content in the glass. I learned that shining a black light on a piece of vaseline glass will make it glow bright green (it's radioactive!). No, no, uranium was added to the glass to make it green-yellow. After using it  straw is blocked. Black light does NOT make everythng neon colored glow, although most bright colors glow because the UV (black light) in sunlight and fluorescent lighting DO activate phorescent atoms in the material. So, no, you don't need a Geiger counter, just a "black light" or other UV source (tanning bed, etc.). What bug is this?!!! Turn on the black light and see "old" glass glow! Keeps showing up in my bedroom ? It's not highly radioactive or anything, just above background levels, but it's still radioactive, which is both cool and creepy. Vaseline glass is ALWAYS verifiable by using an ultraviolet light (blacklight) on the glass item. Setting my house on fire to collect insurance money? Rising star of far right is causing headaches for some, Trump pardons ex-strategist Bannon, dozens of others, Trashy end to Ben Affleck's latest high-profile romance, Melania Trump breaks long first lady tradition, Mask guidance for more contagious virus strain, Harry Brant, son of Stephanie Seymour, dead at 24, Tiffany Trump announces engagement with WH photo, Pelosi tells Trump to 'man up' and admit he lost, MyPillow CEO: Products were dropped after fraud claims, Soldier accused of plotting ISIS strike at 9/11 Memorial, http://users.ticnet.com/mikefirth/sitemap.htm. Uranium glass glows bright green under UV light, and this fact has led to uranium glass becoming popular with collectors. bought  spray can of Tomcat Rodent Block comes with straw. For hundreds of years, glassmakers used small amounts of uranium to create yellow or green glass. A portable ultraviolet rays lamp is so called a "BLACK LIGHT", and you can buy in a large electric appliances store. How to identify it. Watch for glass that is yellow-green in appearance and looks slightly iridescent. If it doesn't glow green, it's not vaseline glass. That’s the catch-all word describing pressed, pattern, and blown glass in shades ranging from canary yellow to avocado green. $25.00. May 12, 2012 - Explore Paula McDaniel's board "jadite and vaseline glass", followed by 1439 people on Pinterest. Often today people use the term “Vaseline” to refer to any green or yellow glass that turns green under ultraviolet light. Vaseline glass can be found in both, iridized and non-iridized glass. Highest quality LED chips and power source. After 1970, United States glassmakers and ceramic producers stopped using radionuclides for color. Many plastics glow under black light. Vaseline glass is a recent term that probably dates from the 1950s. $5.75 shipping. 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