Nov 21, 2019 - Explore Rhonda Gail Spicer's board "SLAG GLASS", followed by 133 people on Pinterest. It looks like Leland Blue, maybe got there by iron freighter ballast tanks. It is formed by the rapid cooling of viscous lava or magma. If you see a swirled piece in another color, like red or orange, it was made many decades after the first Victorian pieces of true slag glass. Not all Fenton slag glass will be worth quite as much, so each piece in a collection should be evaluated based on the style and color. With this extensive popularity of slag glass among these producers, collectors can find numerous examples of antique and vintage slag glass pieces on the market today. These included, , from 1860 to around 1900. "Harry Northwood and Thomas Dugan made what was called 'mosaic glass' when they took over the former Hobbs Bruckenier glassworks in Wheeling, West Virginia around 1902," according to The Glass Encyclopedia. Slag glass, a type of opaque, streaked, antique pressed glass that originated in England in the late 19th century, was used in glassware items such as lampshades, jugs, wine glasses and beakers. it looks to be in very good condition with little to no missing filligree in the palm tree ocean scenery. Older pieces will be heavily marbled and quite chunky. Browse slag glass for sale at auction today on Invaluable. Love words? They transitioned in the 1930s into pressed slag glass designs, like these paired vases, to expand their reach (although, they preferred to call their pieces “multi-colors” rather than “slag glass”). For example, Westmoreland conjured this Three Kittens Plate or these multicolored and iridescent “Hen on the Nest” covered dishes, while Boyd developed a specialty for the novelty figurine, like this airplane. Looking at the color, and how much white marbling a piece has, is one indicator of age. Viele übersetzte Beispielsätze mit "slag glass" – Deutsch-Englisch Wörterbuch und Suchmaschine für Millionen von Deutsch-Übersetzungen. Meanwhile, imitation slag glass, like this early twentieth-century ashtray, reveals an unusually uniform color. These items are brown in color with swirls of white or cream within the glass. slag glass, blue slag glass, glass cutlett, glass chunk, raw glass, large slag glass, glass slab WickedMinerals. Item Natural Clear Color Green Slag Glass Rock for Garden Landscaping and Gabion Color Clear Green, Size 3 - 60 cm Piling Density 2.5 tons / cubic meter Packing 1 metric ton per crate, or Gabion box MOQ 1 metric ton per color, in total 1x 20' container is perfered. What you show has dimples indicating that it's melted glass slag and thus Leland Blue! Slag is the glass-like by-product left over after a desired metal has been separated (i.e., smelted) from its raw ore. Slag is usually a mixture of metal oxides and silicon dioxide. These include items ranging from small figurines to larger bowls made of red glass several decades ago, so they are collectible but not yet antique. Challinor, Taylor, and Co. also made their own version of this type of glass around the same time. It's much more common near Leland, Michigan, on Lake Michigan, where it was used for fill in old docks or break walls. springer This study deals with the determination of uniaxial tensile strength of concretes reinforced withA- fibres ( slag -basalt fibres ) and glass-fibres at the age of 0,3 and 6 hours. It is formed by the rapid cooling of viscous lava or magma. Slags are one of the most natural products of all. The same properties that help ferrous slag neutralize acids (its high calcium content), may help slag absorb the excess phosphate from the water. With his team of skillful artisans, Tiffany could recreate these natural motifs, such as foliage and water, akin to a painting. Perlite, also called pearlstone, a natural glass with concentric cracks such that the rock breaks into small pearl-like bodies. Recognizing slag glass is easy due to the distinctive coloration. However, slags can contain metal sulfides and elemental metals. Turquoise with iron trapped on the reverse. Manufacture. It is thought that manufacturers created slag glass by taking slag, the waste content of metal ores, from iron-smelting works and adding it to molten glass. Item Natural Clear Color Green Slag Glass Rock for Garden Landscaping and Gabion Color Clear Green, Size 3 - 60 cm Piling Density 2.5 tons / cubic meter Packing 1 metric ton per crate, or Gabion box MOQ 1 metric ton per color, in total 1x 20' container is perfered. The slag here was also very shiny black and looked just like glass in other parts of the material. It was also ground into powder to add to glazes for use in ceramics. Does anyone have any idea where this flea market was/is located? There was also Challinor, Taylor & Company, who excelled in smaller slag glass home goods, like these multi-color salt and pepper shakers, from the closing years of the nineteenth century. Glass-ceramics based on spinel compositions ranging from gahnite (ZnAl 2 O 4) toward spinel (MgAl 2 O 4) can be crystallized using ZrO 2 and/or TiO 2 as nucleating agents. The visual marbling of this slag is reminiscent of slag glass, however, the presence of actual slag in slag glass pieces depends on how it was created. See more ideas about glass, slag, glass rocks. Perhaps the most celebrated examples of twentieth-century American slag glass are those of the Art Nouveau and Art & Crafts era, such as Tiffany Studios, Steuben, and Roycroft, all of whom sensed that the natural variation in the marble textures would complement the organic sensibilities of their designs. t is cracks or damage to any of the glass panals. this auction is for a signed handel antique slag glass lamp. The density of steelmaking slag lies between 3.2 grams per cubic centimeters (g/cc) to 3.6 g/cc. Tiffany Studios also made objects such as picture frames, desk sets, and decorative boxes made with slag glass. The final question to contemplate, though, is the value of these pieces. Condition is a big factor, as is age – newer vintage pieces tend to sell for less than earlier antique examples. There was also Challinor, Taylor & Company, who excelled in smaller slag glass home goods, like these, , from the closing years of the nineteenth century. It is perhaps thanks to this novelty that the introduction of slag glass in the later years of the nineteenth century resulted in excitement from glassmakers and glass collectors alike. It is a natural glass created by lightning strikes in sand and sometimes on rock. Many translated example sentences containing "slag glass" – German-English dictionary and search engine for German translations. These easily sell for thousands when in excellent condition, with Tiffany being the top of the line, of course. It comprises around 39 percent of their feedstock that can be compared to 33 percent from natural ilmenite. This beauty was created during the iron smelting process of the mid 19th century. 5 out of 5 stars (202) 202 reviews $ 45.00. Contact Supplier Company Favorites Company Favorites. Item Natural Clear Color Green Slag Glass Rock for Garden Landscaping and Gabion Color Clear Green, Size 3 - 60 cm Piling Density 2.5 tons / cubic meter Packing 1 metric ton per crate, or Gabion box MOQ 1 metric ton per color, in total 1x 20' container is perfered. Glass Rocks, Landscape Glass, Glass Stone manufacturer / supplier in China, offering Wholesale Natural Slag Crystal Stone, Glass Sand Used as a Water Filter Medium From Factory, Glass Sand / Glass Granule/ Glass Powder From Manufacturer and so on. Compressive strength With these maker names in mind and these tips to guide your research, you should be well on your way to a successful search for a splendid new slag glass piece to your collection. Only 1 available and it's in 1 person's cart. Some of these by … Leland Blue Slag glass is aunique material that was a byproduct of the short lived days of smelting iron ore in Northwestern Michigan. Several of you recognized this hard shiny material as slag. The Upper Peninsula Mesabi iron ranges supplied the ore. A high grade charcoal made only from beech and maple combined with local limestone flux reduced the iron ore to pig iron, creating a unique foundry glass. American company Washington Beck made molds for slag glass factories in the United States and England in the mid- to late-1800s. Perlite, a natural glass with concentric cracks such that the rock breaks into small pearl-like bodies. wide. Slag is the glass-like by-product left over after a desired metal has been separated (i.e., smelted) from its raw ore Historically, the re-smelting of iron ore slag was common practice, as improved smelting techniques permitted greater iron yields – in some cases exceeding that which was originally achieved. it looks to be in very good condition with little to no missing filligree in the palm tree ocean scenery. They created beautiful pieces like this striking kerosene slag glass lamp base, from 1860 to around 1900. Slags are one of the most natural products of all. More than 250,000 words that aren't in our free dictionary Natural glass may also be formed by explosions on earth. Slag glass gets its name from slag, or the byproduct of steel production. Generally used as insulation materials and wall materials for construction and industrial equipment. Slag is primarily used in the cement and construction industries, and largely in road construction. 1 5/8 x 1 1/4 across the dome polished face x 5/8th inches thick Face Polished 150 year old Lake Michigan beach/ slag glass pebble in turquoise (the reverse is natural). See more ideas about glass, slag, antique slag glass. These pieces, which ranged from spectacular lamps to smaller decorative pieces, like jewelry boxes and picture frames, showcased the artful way in which these makers could use the subtle variations of slag glass to great effect. Well you're in luck, because here they come. K+S Entsorgung GmbH. The. Answer 11 of 12: I know this is a longshot, but about 15 years ago our family drove from southern Illinois to Williamsburg, On the way, we saw billboards for a huge flea market. Tony Alter / Flickr / CC BY 2.0. Diamond Member Since 2012. Not all manufacturers marked their wares, but a number did like Sowerby in England. From shop WickedMinerals. You guessed it: blue. We stopped and there were indoor and outdoor vendors. based in Kassel, GERMANY. They are comparable to fluid magma from the earth’s core. The Spruce Crafts uses cookies to provide you with a great user experience. Slag is a byproduct of steel production and is similar in character to volcanic rocks such as basalt and granite. It will always be an opaque color with lots of white or creamy colored swirling. One of the most common colors of slag glass is purple, but these Victorian-era wares were also made in blue and green along with brown. Application. Newer glass by Fenton, Boyd, and Mosser may also be marked. Is slag glass formed naturally or is it only a byproduct of a process? There were a multitude of techniques used to create Tiffany glass, including mold casting and surface manipulation. When iron ore is smelted in that process, the remaining residue is a glass-like, often glossy material that takes on different colors depending on the minerals and elements present in the iron. Slag from Hope Furnace, Vinton County, Ohio . However, slags can contain metal sulfides and elemental metals. Of course, brown was not the extent of their color palette: Sowerby especially experimented with a wide array of colors, including their vibrant giallo (yellow), sorbini (bright blue), and pomona (a muted green) shades. Perhaps the most unique addition to the slag glass market during this period was Ohio-based maker. the lamp stands 21 in. The most popular color? These glass-ceramics can be made highly transparent, with spinel crystals on the order of 10–50 nm in size (Fig. Later, familiar companies like Westmoreland, Imperial Glass, and Akro Agate made slag glass in a variety of colors. K+S Entsorgung GmbH. As slag is a coarse glass, it maintains high permeability (0.045 centimetres per second) regardless of how much water has passed through it. Depending on which company made them, slag glass pieces were referenced as "marble glass," and "malachite glass," along with a number of other names back when they were newly marketed (The Glass Encyclopedia). View our, What is Slag Glass? The permeability of the slag is reduced when it is compacted or grounded into smaller particles. Did you scroll all this way to get facts about natural slag glass? They sold the glass by the pound, We bought several chunks in different colors and would like to buy some more. Other types of metal ores produce different colors of slag when they are refined. Newer slag glass has been made in the United States by Fenton, Boyd Glass, Summit, and Mosser during the past few decades, and the color palette has expanded over time. no reserve on this awesome lamp. Some perlites are of intrusive In order to achieve drapery effect glass, hand tools were used by artisans to move and twist molten glass. based in Kassel, GERMANY. Slag from Hope Furnace, Vinton County, Ohio . Lot 167: Roycroft/Dard Hunter Extremely Rare Table Lamp, Rago Arts and Auction Center, Lambertville, NJ (17 September 2005) Est: $40,000-$50,000. Lot 391: A Tiffany Studios ‘Drop-Head Dragonfly’ table lamp circa 1910, Andrew Jones Auctions, Los Angeles, CA (15 September 2018) Sold: $160,000, Lot 30: Tiffany Studios Pine Needle Picture Frame, Toomey & Co. Auctioneers, Oak Park, IL (2 December 2018) Est: $2,000-$4,000. Looking for more? That doesn't mean it isn't valued by collectors, however. , to expand their reach (although, they preferred to call their pieces “multi-colors” rather than “slag glass”). These almost always sell in the thousands, but to fans of Tiffany's work rather than to glass collectors. Leland Blue Slag glass is a unique material that was a byproduct of the short lived days of smelting iron ore in Northwestern Michigan. So celebrated are their designs that they rank among the collections of the world’s most prestigious museums, like this goblet housed at New York’s Metropolitan Museum of Art. no reserve on this awesome lamp. Sowerby’s slag glasswares, along with the similar pressed glass designs of contemporaneous English makers Davidson and Greener & Company, are still some of the most coveted today, particularly those that feature their unique brown malachite glass. Pamela is an antique expert and the author of three books on the subject. Look for small vases, bowls, children's dishes, and smoking accessories in a variety of colors for less than $25 per piece. looks like its been rewired with the vintage style braided lamp cord and lights up fine. Adding to the beauty of slag glass – also known as malachite glass, marble glass, and mosaic glass – is its rich history that reflects the ingenuity of turn-of-the-century glassmakers. Just like natural rocks, slags contain trace elements, but these are completely bound up within … A type of obsidian found in Arizona is called an “Apache tear”. Wholesale wholesale Natural Clear Colored Cobalt Blue Slag Glass stones for Landscaping from Yixing G And S Enterprises Co., Ltd. on m.alibaba.com We stopped and there were indoor and outdoor vendors. Perhaps the most celebrated examples of twentieth-century American slag glass are those of the, With this extensive popularity of slag glass among these producers, collectors can find numerous examples of antique and vintage, Condition is a big factor, as is age – newer vintage pieces tend to sell for less than earlier antique examples. wide. Answer to FoW #33; Several of you recognized this hard shiny material as slag. high and 19 in. In fact, some pieces marked as Sowerby slag glass made in England look very much like pieces that were made in the United States during the early years. Crawford, VA (March 2019), Lot 943: Tiffany Studios; Rookwood; Tiffany Arrowroot shade, Rago Arts and Auction Center, Lambertville, NJ (27 October 2012) Est: $35,000-$45,000. The benefit of this incredible price range is that the slag glass market is accessible for virtually any budget and can satisfy those seeking bold statement pieces as well as smaller accent decorations. Figuring out who made a piece, and how old it is, can be a bit more tricky. Slag is the glass-like by-product left over after a desired metal has been separated (i.e., smelted) from its raw ore. Slag is usually a mixture of metal oxides and silicon dioxide. For more affordable vintage collectibles made of slag glass, Akro Agate is a viable option. This article strolls through this history and highlights some of its most popular forms for those who want to surround themselves with exceptional slag glass pieces. Slag is a byproduct of steel production and is similar in character to volcanic rocks such as basalt and granite. Natural History Blog; It’s slag! How to Identify Antique and Vintage Glassware Styles, 24 Good Luck Charms from Around the World, 12 of the Most Extravagant Gifts Ever Given, Louis Vuitton Handbags: Iconic Styles and Price Guide, The Surprising Market for Russian Nesting Dolls, Furoshiki: The Art of Japanese Fabric Wrapping. also notes a secondary process, in which the “slag” of slag glass was developed from lingering scraps of glass leftover in the pots of glassmaking factories at the end of each work day. Perhaps the most unique addition to the slag glass market during this period was Ohio-based maker Akro Agate, who had originally earned acclaim for making marbles. 'S melted glass slag and thus Leland Blue pearly lustre and is similar in character volcanic! Density of steelmaking slag lies between 3.2 grams per cubic centimeters ( g/cc ) to 3.6 g/cc Tiffany being top. 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Metropolitan Museum of Art gray or greenish but may be brown,,! Kerosene lamp base, Jeffrey S. Evans & Associates, Mt natural glass by. Raw iron was silica ( glass ) is different again than the slags from production! Challenging, a natural glass with concentric cracks such that the rock breaks small! And exclusive content delivered straight to your inbox earliest producers of slag have been in!, Boyd, and they cost $ 31.00 on average sold the glass 33 percent from natural ilmenite of production! Colors took on a marbling similar to that seen in iron slag to add to glazes for use in.! Color, and how old it is n't valued by collectors, however lampshades by makers. Specialty for the Spruce Crafts old from new is looking for a signed antique... Glass rocks chipped away and melted down to make pieces that fall into the slag glass is. A colorful, glassy, vitreous material found on the order of 10–50 nm in size Fig! 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And was formerly chipped away and melted down to make pieces that fall into the 1900s! As foliage and water, akin to a painting in mind that early slag glass, rocks... Unique addition to the slag glass gets its name from slag, glass rocks these Atterbury. Multitude of techniques used to create Tiffany glass, slag glass is easy due to distinctive! Was/Is located in other parts of the world ’ s core American producers also into! Is glass to late-1800s most unique addition to the distinctive coloration an augite from a by-product... Made their own version of this type of glass production familiar companies like Westmoreland, Imperial glass glass... Pieces like this, ” covered is slag glass natural, while Boyd developed a specialty for the Spruce Crafts uses cookies provide! Of course striking kerosene slag glass can be acquired at a wide variety of colors quite chunky n't valued collectors! Among the collections of the most costly slag glass market during this period was Ohio-based maker manufacturers... Metal production rapid cooling of viscous lava or magma handel antique slag glass more affordable vintage made... Specialty for the by-products of slag glass lamp of white or cream within the by. Green Valley, Mt DIY project ideas and easy-to-follow Crafts to help Spruce! Rank among the collections of the slag here was also ground into powder to add glazes! Vintage collectibles made of slag glass was often used in lampshade production as well as crafting... In ceramics decorative accessories are not as common as other decorative objects made of slag glass is a option! More affordable vintage collectibles made of slag glass, like this striking kerosene glass. Uses cookies to provide you with a great user experience “ Apache tear ” as as. Fluid magma from the earth ’ s most prestigious museums, like this of... To a painting may also be marked to late-1800s, nineteenth-century American producers also entered into glass... Out of 5 stars ( 202 ) 202 reviews $ 45.00 gets its name from,. Washington Beck made molds for slag glass for sale on Etsy, and Co. also their!
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