Answer by
Anonymous
with a set of scales, ideally to two decimal places, weigh item and record, place a plastic
glass filled with water on scales and zero. suspend item fully into water on a piece of cotton, divide this value into weight 24k 19.3 18k 15.6 9k 11.5, simples
I thought if it turns green that just means that there is an element of copper in the gold (ie. 14k, 18k) as many times another metal is added to strengthen the gold. add a comment