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.
454 g is the avoirdupois measurement for one pound. 28.4 grams in an ounce. 8 ounces in half a pound. 28 x 8 = 227 grams. 240 g is equivalent to 8 oz. or Â½ lb. 1 lb. and 16 oz. are common household measurements of one pound. 454 g is the avoirdupois measurement for one pound.<br /><br /><br />28.4 grams in an ounce. <br /> 8 ounces in half a pound. <br /> 28 x 8 = 227 grams.<br /><br /><br />240 g is equivalent to 8 oz. or Â½ lb.