Circulation U.S. coins were never made of pure silver. Up through 1964, dimes, quarters, and halves were made of 90% silver with 10% copper added so the coins would be less prone to wear in daily use. When silver prices rose in 1964, the mint switched to copper-nickel blanks for dimes and quarters beginning in 1965, and reduced the silver in half dollars until 1971 when they too became all copper-nickel.
Bullion coins are often made of 99.9% pure silver, which is about as pure as it's practical to use. These are sold in special holders and are normally marked with the level of purity as a 3-digit decimal; e.g. .999 = 99.9%. These coins are sold for their precious metal content and aren't intended to be spent.
Beyond than that, a jeweler can perform what's called a specific gravity test to tell something about a coin's composition. It involves weighing the coin and comparing the weight to its volume. The density of silver is well-known, so a coin whose density is different from that of silver must have some other metal mixed in, or have no silver at all.
Silver is element number 47 -- Ag. A pure silver coin contains the element silver, but the coin itself is not an element.
I think you would have to be a physicist to do that. It would be easier to identify the coin by nation of origin, date and denomination, and a coin guide book will help do this, and the book will tell you what metal the coin is made from.
It would be homogenous.
By putting it in hot water for a week
The 395 means how much pure silver is in the coin. It was stamped on by the manufacturer when the coin was made and it was possible to measure the amount.
Silver is element number 47 -- Ag. A pure silver coin contains the element silver, but the coin itself is not an element.
The coin is considered a solid silver but is not pure silver. 1964 was the last year for the solid silver coin.
It depends on the weight of your .999 pure silver coin. Currenrtly silver is $24.13 per ounce.
I think you would have to be a physicist to do that. It would be easier to identify the coin by nation of origin, date and denomination, and a coin guide book will help do this, and the book will tell you what metal the coin is made from.
No. The US has never made a coin with pure silver. The closest to pure silver would be American silver Eagles. These coins are silver bullion coins. They are made of 99.93% silver and .07% copper.
The coin is 90% silver and 10% copper not pure silver, but a date is needed.
The coin has .77344oz of pure silver.
1964 was the last year for a 90% silver dime. No circulating coin was pure silver.
Few coins are pure silver, nearly no circulation grade coin is, pure silver is too soft. The only pure silver coins are silver bullion coins, usually dated from the 1980s-present (though a few are older than that). The easiest way for a non-expert to see if a coin is genuine is by looking at the features, comparing weight, thickness, diameter and details of the coin to a genuine example. For example, a Silver Eagle that weighs too little when compared to a genuine coin or is too thick is a giveaway that the coin is suspect. Keep in mind that silver is not magnetic so if the coin sticks to a magnet it is not silver.
No, nor are ANY U.S. silver coins pure silver. It's 90% silver with 10% copper.
there is no year on the coin
There is only 1 silver coin, the 40% Kennedy half dollar which contains 4.6 grams of pure silver.