Colors of Vaseline Glass (Colors of Unanium Glass) Genuine early American flint glass is getting mighty thin on the ground these days. In its 118 years in business, Steuben was a leader in the luxury glass market. The vases rest on a Vaseline glass base. While today there is general acknowledgment that this wasn’t a great idea, it did make for some striking glassware that is very popular with collectors today. The vases rest on a Vaseline glass base. Uranium glass is opaque. A cut glass mold does not impart any designs onto the molten glass. However, if your piece does not have any marks or labels, it … A. New tumblers and coasters have the same measurements as old. Hold it to an ultraviolet light. A pressed glass mold — which can be made up of two to four different pieces — imparts the design directly onto the molten glass that is then cooled and removed from the mold. How to Identify Vintage-Cut Glass Patterns. Love it 4. Carnival glass items have an iridescent coating and have been pressed in a mold to form different shapes. I am looking for something to put on top of it, and I also have a rather large collection of vaseline glass plates, serving platters, ect. You have raised a question about whether your cabinet or dishwasher could be contaminated from contact with radioactive Vaseline® glass dinnerware. If you purchase Vaseline glass in a store or from another buyer, ask for verification with the UV light test. Milk glass, often used to make lamp bases, is translucent when held up to the light. Petroleum jelly consists of waxes and mineral oils that melt easily. @This home page describes "How to discriminate vaseline glass (uranium Put simply, uranium is used to color Uranium glass, and other additives are used for Vaseline glass. Back to Glass Encyclopedia Home. Pontil marks can look like a rough broken chipped mark, a … The vaseline reproduction was first made in 1972 then made again in 1996. Consumer Products — Radioactive Ceramics and Glass. Custard glass is a creamy pale yellow opaque glass (mostly pressed) made primarily in America, ca. There’s a lot of replica depression glass out there, but you can tell genuine products by small bubbles inside the glass, long, thin lines on the base, and seam lines. The coloring agent in Vaseline® glass is uranium which is mixed into the glass at the time of production. A black light will make true uranium glass glow very brightly, while the Geiger counter will indicate the presence of radioactive material. Common colours are marigold, amethyst, green, and blue. Can I use this cabinet or would it be contaminated? While some Uranium glass has an oily sheen to it, that doesn’t mean that a piece lacking said sheen isn’t real. Vaseline is a brand name for petroleum jelly. Start by looking through the base of the glass to identify the colour accurately. But a true collector cannot compromise on authenticity, and hence, in the following lines, we will show you how to tell if a particular Fenton glass is authentic or not. Since it is part of the glass, the uranium cannot rub off by contact. uranium. It glows, but they aren't using the right stuff." It helps if there is a mark identifying a certain Murano company or a signature of the master glass-maker on the item, and some Murano Glass companies do label, stamp or sign their work in some way. I started out as a barber and Sue worked in the produce department with the Kroger Company. The bottom line is that your cabinet and dishwasher are perfectly safe to use without concern for contamination with uranium. Flaccus filled in the gap by obtaining the U.S. Glass Co. license to make Vaseline jars at his Enterprise Glass Co. in 1893 – again probably only for a year, although the timing is less certain, and Flaccus may have continued either machine or hand production of the Vaseline jars – … Cherry Blossom is one of the most popular depression glass patterns. The Jeanette Glass Company, like most companies who survived the Great Depression, has quite an interesting history.The company began in 1887, in the town of Pennsylvania that shares the company’s name, as a simple bottle company. Vaseline glass is a recent term that probably dates from the 1950s. Boyd Glass enjoyed 36 years of successful glassmaking. How do I tell what the value is by looking at the marks on the pieces? A real pearl should bounce about 13 or 14 inches high, whereas an imitation pearl’s bounce will typically be much lower. Cookie jar, juice, and water tumblers have been reproduced in a very dark cobalt blue, according to Collector's Encyclopedia of Depression Glass by Gene Florence. American Brilliant Period glass production was the last great heyday of the cut-glass craze -- and it ended about a century ago. It's called milk glass because the glass itself looks like the color of milk. Reproduction tumblers are easily identified because they do not have the patent number. Uranium or Vaseline glass is a yellow-green color, and if authentic will fluoresce under a black light. Pontil Marks: 99.99% of the time, Fenton will not have a pontil mark on the bottom. So Sunglass Rob is here to let you know how you can tell if your Costa frames have authentic Costa lenses in them. Either red/orange fluorescence In natural or indoor light, Vaseline glass has a yellow or yellow-green tinge similar to the color of the old formula of Vaseline petroleum jelly, which is where its name comes from. 27-apr-2013 - I love how real uranium vaseline glass glows under black light. At least for the time being. How blessed we have been. New tumblers and coasters have the same measurements as old. However, it’s … Distinguish Vaseline glass by its unusual yellow-green tint, easily confused with Depression glass. Photo via Dave Peterson at VaselineGlass.org Top: The relationship between a piece of glass’s propensity to glow and its uranium content is often not predictable. Like it bijoucaillouvintage loves this. Look for the signature of the glass master on the artwork. Vaseline Glass Collectors, Inc. September 5, 2019 9:55 am Reply I would suggest you post your picture in the visitors post area on the Vaseline Glass Collectors, Inc. Facebook page. Many avid collectors say they can identify the real thing by how it feels. from uranium atom in vaseline glasses is negligibly small, UV light is Category: Consumer Products — Radioactive Ceramics and Glass. As a result, the glass is delicate and may be chipped or scratched from use. Often, crystal will feel heavier than glass due to the lead content. Another way to tell the difference between the two is to touch the objects. @A portable ultraviolet rays lamp is so called a "BLACK LIGHT", Uranium glass is opaque. This is a basic requirement of all vaseline/uranium glass collectors. The simplest test is to scratch the agate on a glass surface, a bottle or a tumbler. Both green Depression glass and Vaseline glass will glow under a black light due to the uranium oxide content in the glass. The colour is an important part of carnival glass and affects the appearance of your collection as a whole. The coloring agent in Vaseline ® glass is uranium which is mixed into the glass at the time of production. @When the uranium atom absorbs the energy of the ultraviolet(UV) rays, it is activated by the UV energy. The stickers are usually oval and may have scalloped or smooth edges. This is NOT vaseline glass. The answer is that NO residual radioactivity will remain in your cabinet or dishwasher. This competition is in the form of reproduction glassware made to look like old and collectible pattern glass from the turn of the 20th century, but produced after 1930 or even after 1990. There may be slight imperfections in authentic Depression glass like tiny bubbles or ripples. Vaseline glass is glassware that is made with uranium content to give a pale yellow green colour similar to that of petroleum jelly. @Back to Japan Uranium Glass Collectors Club, http://www.sumita-opt.co.jp/ja/goods/other/tiku1.htm. Antique and collectible glassware has had competition for years. The piece at left contains no uranium at all, while the dark piece at bottom-center contains the most of the group. It was made by the Jeannette Glass Company ca. Answers are the professional opinions of the expert responding to each question; they do not necessarily represent the position of the Health Physics Society. The following question was answered by an expert in the appropriate field: I purchased a new home and in one of the cabinets the previous owner displayed a collection of Vaseline® glass dinnerware. Vaseline glass. Uranium glass can be detected with a geiger counter, or an ultraviolet (UV) light. Last Updated On: December 27, 2020. Vaseline Glass Collectors, Inc.,(VGCI), is a non-profit 501(c)3 organization incorporated in 1998 to educate and unify Vaseline Glass collectors everywhere! A related question that may also be of concern is whether contact with the radioactive Vaseline® dinnerware could cause other materials to become radioactive. Again, the answer is NO. Uranium glass (aka Vaseline glass) was manufactured using trace amounts of (you guessed it!) glass)" , and "What is genuine vaseline glass and what is not?" Above: Flower vases made at the Thomas Webb & Sons factory in England. The information provided is not a substitute for professional advice and should not be relied upon in the absence of such professional advice. You may also see an oval with the word Fenton stamped into the glass if the piece was made after 1970. Answer posted on 18 September 2015. 4)Opaque light blue uranium glass 1930-1939 and commonly produced in pink, green, Delphite (opaque blue) and clear. The leading company was Northwood but custard was also made by Heisey, Tarentum, Dithridge, U.S. Glass… Be advised that over time, requirements could change, new data could be made available, and Internet links could change, affecting the correctness of the answers. Either red/orange fluorescence or … While some uranium might also be leached during dishwashing, it would be removed with the wash water. The answer is that NO residual radioactivity will remain in your cabinet or dishwasher. FACT: Vaseline Glass is still being produced today, using the same compounds as over 100 years ago. Harry Northwood is one of the most well-known figures in American pressed glass. This is a good question that may concern other people with such glassware. To convert these to traditional units we have prepared a. Furthermore, to make sure that the signature is original, compare it with the signature of … Who can I show that can tell me if real or reconstituted uranium glass? It is not illegal and the uranium, while regulated, is available. Anyway, this is NOT vaseline glass, (JUDY LEE in USA). The piece at left contains no uranium at all, while the dark piece at bottom-center contains the most of the group. Uranium oxide was first used as a glass colourant in the 1830s. Bottom Line Recommendation: This guide is for people who own jewelry pieces or collections and want to know if they are real. _____ The uranium glass is described by its color. This green light wavelength (550 nano-meter) is unique to the uranium atom. If you’re serious about only collecting Uranium or Vaseline glass, carry a small black light wand with you, since that is the only sure-fire way to see the presence of Uranium. How to identify it. How To Identify Valuable Carnival Glass by Dr. Lori - YouTube The Federal Glass Company produced pressed glass, more commonly referred to as "Depression Glass" in Columbus Ohio. It glows green under UV, and genuine uranium glass. And its green color can not be changed by anyhow, even if mixing with other color glass. Do not look UV light closely for long time.). The following list tells something about the a few of the makers and their glassware. http://www.imagesjewelers.com/gia-diamonds.htmlThere are many ways to determine if a stone is a real diamond or another material, like cubic zirconia. Transfer of that energy does not cause the nuclei of other atoms to become unstable. harm to your eyes. A 2001 study by the US Nuclear Regulatory Commission indicated that some uranium might be leached from the glass by acids that could result in very small radiation exposures to regular users of the glassware. Like other glassware, milk glass underwent a revival in the 1940s and 1950s and has been considered an “evergreen” collectible since. The Federal Glass Company produced pressed glass, more commonly referred to as "Depression Glass" in Columbus Ohio. The first, the Northwood "script" signature (Fig.1) originated about 1899 at his Indiana, Pennsylvania plant. A real Victorian oil lamp is heavy because the glass was thicker, and maker’s marks or names may be embossed on the font itself or on the shade. To the best of our knowledge, answers are correct at the time they are posted. At first glance, it may seem difficult to remove petroleum jelly on glass. The white glass is generally opaque, with hints of blue, pink or yellow showing through. However, using Vaseline's low melting point to your advantage by using warm water combined with products meant for emulsifying oils can make the process easier. American colorless pressed glass made before 1930 is said to fluoresce yellow, while reproductions generally do not. Music to any died in the wool antiquer. American colorless pressed glass made before 1930 is said to fluoresce yellow, while reproductions generally do not. To identify whether a piece of glass is Fenton glass, look for a sticker near the bottom of the item. Hazel Atlas Glass Co. - ca. 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