1 Raw iron is found in earthâs crust, as an ore. 2  Iron ore mostly found as Fe 2 O 3 (the form of iron oxide found as the mineral hematite).
A US quarter struck in 1964 or 1965 (dated 1965) and later weighs about 5.67 grams. A US quarter struck between 1930 and 1964 weighed 6.25 grams. This would make a roll of qâ¦uarters, or 40 quarters, weigh between 226.8 grams and 250 grams. This is about half a pound for the lower figure and almost 1 ounce more for the higher figure.
Rating Newest Oldest. Best Answer: Quarters after 1964 are copper nickel clad, there is no silver. only the 1/2 dollars from 1965-1970 are 40% silver. There was a 1976 silver quarter as well as the proof silver state quarters. Source(s): 48 years a numismatist.