Is "sun-purpled" glass a good investment? On the contrary, it is tantamount to purchasing a piece of damaged glass and the value is decreased as though it had a serious crack or chip.
true bright pink, like true bright purple, are ultra rare. Most purple sea glass is actually “sun” purple – in the old days manganese was added to glass as a clarifying agent, and manganese turns purple when exposed to UV rays – like those in sunlight.
Pink and red (cranberry) glass is typically the most valuable and was made using gold oxide, while blue (made using cobalt salts), green (uranium), and yellow or amber (sulphur) tend to command lower prices.
From 1885 to 1914, manganese dioxide was used as a clearing agent by glass makers to make sure the glass remained clear. However, when exposed to the sun over time, the manganese dioxide in the glass will cause the glass to turn a purple tint. The main source of this clearing agent was Germany.
Take some time and look closely at the piece's shape, surface, weight, and quality—all potential clues for you. “Is the glass transparent or opalescent or iridescent?,” Robinson asks. “Is there any decoration that might give away what it is or who may have made it?” Look to see if the glass has been signed or marked.
Depression glass was manufactured from the 1920s to the 1950s, while carnival glass was made as early as 1900. Both types of antique glass are considered collector's items and are highly sought-after.
Color and pattern, which helps identify both the rareness of the piece as well as its manufacturer. Some of the most valuable colors are cherry red, black amethyst, and ice green.
Manganese-decolored glass that has undergone a color change due to exposure to the ultraviolet rays of the sun is variously known as sun- colored amethyst (SCA), solarized amethyst, solarized purple, or irradiated glass.
True purple glass is much rarer. In our English Sea Glass collection, it averages one in 5000 pieces as true lavender glass was reserved for the Monarchy (showing Royalty) and for the Bishops in the church. Light Blue or Cornflower Blue (Pre 1900 Phillips MOM bottles, Bromo Seltzer, Vick's Vapor Rub, etc.)
In the early 20th century, changes in manufacturing processes, as well as more pure batch materials, dictated different ways to decolorize glass, and the use of manganese oxide for this purpose dwindled.
“The recipe for producing colored glass usually involves the addition of a metal to the glass,” the experts at Geology.com explain. “This is often accomplished by adding some powdered oxide, sulfide, or other compound of that metal to the glass while it is molten.”
Purple lenses have a soothing effect on the eyes which helps reduce strain and eye fatigue. They also reduce blue and green light from the environment which creates a calming effect, reducing stress and anxiety.
Tyrian purple: The lost ancient pigment that was more valuable than gold. For millennia, Tyrian purple was the most valuable colour on the planet.
Because of the age of the glass, the small subset of glass products which used this production technique, and the need for extended exposure to the sun's light, Purple Sun Colored Antique Glass is a rare and collectible artifact, and fascinating piece of industrial history. Today the supply is extremely limited.
Sea glass is essentially broken glass from discarded items that have been polished and shaped over 20 years and up to 200 years by waves and weather. The legality of collecting sea glass depends on where you are located. It is illegal to collect sea glass on beaches located within U.S. state parks.
Make no mistake, sea glass is a commodity. It has real value, with some individual pieces selling for up to $1,000 and more. Many factors must be present to sell sea glass for top dollar.
Historically, for African Americans, the purple glass is a symbol of burials in African American cemeteries. You carry a purple vessel with water in it and smash the glass vessel on a tombstone.
Because it takes so long, some people expose the glass to UVC lamps in a box at high intensity for 3–4 weeks to get them to change from clear to lavender.
The normal colour of uranium glass ranges from yellow to green depending on the oxidation state and concentration of the metal ions, although this may be altered by the addition of other elements as glass colorants. Uranium glass also fluoresces bright green under ultraviolet light.
Some of the most collectible types & styles of antique and vintage glassware include Depression Glass, Carnival Glass, Milk Glass, Moonstone, Hobnail Glass, and Jadeite. One of the most popular styles of antique glass was a Hen on Nest, also known as Animal Dishes because of the variety of animals they come in.
Looking at some of the going prices for Carnival Glass pieces over the years, it's evident that there's a price range that depends on the rarity (a limited run), year of manufacture, condition, and color variety of the piece as well as whether or not the piece is part of a complete set.
Sell it off as individual pieces (eBay and/or lists, and/or club newsletters, and/or club conventions, or open a booth in an antique mall) Sell it through a 'local (general antiques) auction company. Sell part of it through a recognized 'carnival glass Auction company' now, and the rest later.