how much silver in a 1970 kennedy half dollar

[VanEvangeline]

Based on the provided information, a 1970 Kennedy half dollar contains 40% silver. This year was the last for the regular-issue 40% silver composition in this series.

The silver content of Kennedy half dollars varies significantly by year. The original 1964 issue was composed of 90% silver. From 1965 until 1970, the United States Mint reduced the silver content to 40%. After 1970, the composition for circulating Kennedy half dollars was changed to a copper-nickel clad alloy, which contains no silver.

Therefore, the 1970 Kennedy half dollar holds a specific place in the series as the final coin struck with silver for general circulation. Each of these 40% silver half dollars contains approximately 0.1479 troy ounces of pure silver.