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silver tissue paper Coin Collecting: How To Tone Coins Naturally And Increase Coin Value

by:Mengsheng     2020-03-12

Many coins are widely appreciated for their beauty.Although beautiful in the eyes of onlookers, throughout history, antique coins can get a high premium on price.Silver is often thought to be the most attractive tone, but other metals such as nickel and copper are also possible.When the color is not attractive, it is called gloss.There are many people who want to have a beautiful coin.However, the coins may be expensive and out of reach for the average collector.The good news is that coloring is a normal process over time.The bad news is that it may take decades for the color process to produce a beautiful coin.However, just as someone can help fruit trees grow by adding fertilizer, someone can also help stimulate the conditioning process.What is the color or color change, what is the cause?Color matching is a chemical process in which the surface of a metal (such as silver) reacts to the contents of the surrounding environment or atmosphere.This can be described in the following formula.The result is a thin layer of hydrogen sulfide or AG2 s gradually formed on the surface of the coin.Like oxygen or O2, hydrogen sulfide or hydrogen sulfide is usually present in a very small amount in the atmosphere.This explains why Silver always gives a tone if exposed to the air, although only after a long time.Temperature and humidity accelerate the thickening process.The silver sulfide itself is black and can often be seen on the silver that loses its luster.However, the thickened layer of silver sulfide will produce various colors through the so-called thin layerMovie interference effectWhat is thin-Movie interference effect?The Thin-Anyone who has seen the bright colors in soap bubbles is familiar with the effect of movie interference.A ray of light shines at a certain angle on the surface of the coin, which contains a thin layer of hydrogen sulfide.The beam is divided into two parts, one is reflected immediately, and the other is penetrated through the upper layer.The light passing through the layer is refractive or bent according to the type of material and the thickness through.The phase shift causes the two-wave light to produce a new color to the naked eye.The light visible to the human eye covers a series of wavelengths ranging from about 400 nanometers (nm) of purple to about 700 nanometers of crimson.Each color in the spectrum has a corresponding wavelength of light.There are three cone cells in the human eye, which are blue, green and red, respectively.Each cone is most sensitive at a certain wavelength.The human brain interprets the combination of these three cones as some kind of light.For example, blue green red = White.The blue light has the shortest wavelength of the three cones and is the first to be offset by the thinnest palette.Canceling the phase of the blue light is about 220 nm, which requires a tonal layer of half or about 110 nm.Without blue, there is red and green, turning yellow.That's why the first sign of the color palette is always yellow.However, the coloring process can happen so quickly that the coloring layer is so thick that it completely bypassing the natural development of the color.You may then get a black coin in the final state.The following table shows the natural progress of color matching.How to adjust coins naturally?Now that we know what is causing the color palette, it is possible for anyone to naturally color the coin.Simply exposing your coins to the air can be done for a long time.However, what can you do to speed up the process if you are not willing to wait for decades.The speed of the coloring process may be affected by multiple factors.Different gases in the air can lead to different types of coloring.One of them, sulfur is naturally present, and it combines with moisture in the air to speed up color matching.Due to the presence of cigarette smoke or electrical appliances, nearby sources can increase the amount of sulfur in the air rather than running on natural gas.Surface contamination of certain substances in contact with the surface of the coin can affect the coloring process.Examples are water or oil in greasy hands.The longer the surface of the coin is exposed, the more the color changes.The increase in heat and humidity will also accelerate the mixing process.Because the atmosphere in the local environment varies from place to place, the color matching process will also vary from place to place.The key to accelerating the coloring process is to increase the amount of hydrogen sulfide close to the coin.This can be done by any source with moderate sulfur content.Store coins with a tray and a tray.Wrap coins with white paper towels.Seal the coin with a brown or manilla envelope.If you can find it, store it in an antique coin album.Due to the heat, you can also put them in the sun for a faster coloring.You have to monitor the process to make sure that the color is not going to be too fast and ugly.It is expected to wait at least 6 months before there will be the first sign of color matching, about 12 to 24 months until you have something available.It is important to use only a small amount of hydrogen sulfide.Try low value coins first and see what works best.The silver quarter of 1964 will be a good choice.In fact, too much will make the coin completely black and lose all the value.What is the difference between artificial and natural?There is no clear definition of the difference between the two, and it has a strong subjective color.The above method is a bit gray, but most people don't usually think it's artificial.Under normal circumstances, anything that quickly causes color matching is considered artificial.An obvious example of manual coloring is the use of a large concentration of chemicals in the laboratory to color coins.In these cases, you can get a bodybuilding coin in a few seconds.Please note that chemicals such as hydrogen sulfide are very toxic.However, these coins are often different from coins that are gradually changing.They tend to show signs that are well known and relatively easy to spot in the collection community.It is difficult to find collectors who are willing to pay any premium for these coins.Some very skilled people have little chance of making a coin that can fool some experts, but this is very rare.Some patterns and color combinations can also be achieved only by natural color matching, not by manual color matching.What are the benefits of the Toned coin?The main advantage of the coin is its beauty.In addition, a colorful and charming coin can make it unique and rare compared to other coins.Coloring can appeal to collectors who are willing to buy from you.Professional scoring companies like NGC will add a special logo like the stars to show its appeal from a physical point of view.This means that the coin is more valuable than an ordinary coin.It is not uncommon for a charming-toned coin to deserve a multiple similar to an unopened coin.
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