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U.S. Silver 1oz. Round - "The American Prospector" Source: Bought, Colonial Trading Co. Purity - 99.9% This coin was purchased from a bullion shop. Upon purchase, the coin was dirty. So I set up an electrochemical cleaning system: I put a beaker on a hot plate, heated to about 80C, dissolved baking soda (NaHCO3) until no more would dissolve, and put the coin in on top of a lot of aluminum foil. This system reduced the tarnish (silver sulfide) to silver metal, and oxidized the aluminum foil. |
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Silver Powder - ~150 Mesh Source: Found, Lab Cleanout Purity - 99.5% This silver powder was taken from a larger bottle. It is very white, not due to oxide, but due to its natural color. |
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Silver Leaf Flakes Source: Bought, The Nature Company Purity - 99.9+% These silver flakes were purchased as a set from The Nature Company. They are suspended in kerosene, and are so thin that they stay suspended upon shaking for minutes. The kerosene has allowed the surface to stay completely untarnished, showing off silver's true luster. |