A few 1965 dimes were accidentally struck on silver blanks left from production of 1964-dated coins, in much the same way that the famous 1943 copper pennies were made by accident. No one knows exactly how many were made and none have been found in many years.
The standard composition for all circulation-strike dimes dated 1965 and later is the same cupronickel-clad "sandwich" also used for quarters and halves. 1964 is the last year that Roosevelt dimes were 90% silver.
From 1965 to 1967 coins were made without mint marks as a way of supposedly easing the coin shortage that resulted when older silver coins were withdrawn for melting. As a result production figures were not broken down by mint mark. The only figure available is a combined total - 1,652,140,570.
An pre-1965 U.S. dime weighs 2.5 grams total. The silver content of pre-1965 dimes, quarters, halves, and silver dollars is 90% silver by weight, so there is 2.25 grams of silver in an unworn, uncirculated pre-1965 U.S. dime.
A bit less than 14 dimes makes a troy ounce of silver.
Dimes minted in 1965 and later weigh 1/8 of an ounce, so get out your calculator and go with it.
Presuming that you are referring to US dimes issued between 1875 and 1964 (dimes older than 1875 had different weights and/or fineness), dimes weigh 2.50 grams and are 90% silver (the remaining 10% is copper). This means that the ASW (Actual Silver Weight) is 0.07234 troy ounces. Thus, it would require 14 dimes (this number is rounded up; the precise number is 13.8236 dimes) to have one troy ounce of silver.
Silver dimes were 90% silver with 10% copper and weigh 2.5 grams, which is 2.25 grams of silver.
Pre-1965 silver dimes weigh 2.5 gm, assuming minimal wear. A pound is 453.6 gm. Grab your calculator and take it from there.
Pre-1965 dimes are 90% silver & 10% copper. The Actual Silver Weight (ASW) is .07234oz of pure silver.
An pre-1965 U.S. dime weighs 2.5 grams total. The silver content of pre-1965 dimes, quarters, halves, and silver dollars is 90% silver by weight, so there is 2.25 grams of silver in an unworn, uncirculated pre-1965 U.S. dime.
Beginning in1965, dimes were made without silver. Up to 1964, dimes were made of 90% silver. The nominal weight was 2.5 gm so 0.90 * 2.5 gm = 2.25 gm of pure silver.
A bit less than 14 dimes makes a troy ounce of silver.
No current circulating coins contain silver because its price varies on world markets.In the past the price of silver was controlled and many countries' mid-denomination coins were struck from it. Some examples:US half-dimes up to 1873, dimes and quarters to 1964, halves to 1969 (reduced purity 1965-69), and dollars to 1935Canadian 5¢ coins to 1921, dimes, quarters, halves, and dollars to 1968 (reduced purity 1967-68)British coins of many denominations up to 1947
100 silver U.S. dimes make up 7.23 troy ounces of silver.
It appears as though there were 620,684 silver Roosevelt Dimes minted in 2008. All of these silver dimes are proof and available only in the 2008 Silver Proof set.
The 1944 Mercury dime was issued from all three US Mints.
Each Kennedy half that was minted in '64 or earlier had .36 troy oz of silver meaning a little less than three would equal an ounce of silver which is running for 29.30 an ounce last i checked. <><><><> Half dollars made 1965-1970 contained only 40% silver, instead of the 90% of earlier coins, so it would take more coins. Half dollars made after 1970 contain no silver.
Are silver coins made by the US Mint. Quarters, Dimes, Half dollars and dollars struck for circulation dated 1964 and prior are 90% silver. Half dollars dated 1965-1970 are 40% silver. All US coins intended for circulation dated 1971 and later are not silver. The US has and does mint silver coins intended for collectors including the American Silver Eagle, since 1992 they have made a silver proof set and there have been many silver commemorative coins minted.
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