Is a 24k .999 gold glad coin considered solid gold?

If a coin is clad in 24-karat gold, most likely the coin itself is NOT "solid gold"; the majority of the material may be copper, nickel, or manganese (or some alloy using two or more non-precious metals), with only the exterior surfaces being plated in 24-karat gold. This is the method by which many novelty coins are produced (i. e., ones made by companies not affiliated with a nation's treasury department, like the U. S. Mint as an example). Bullion coins, such as the American Eagle or American Buffalo, the South African Krugerrand, and the Canadian Maple Leaf, are generally 0.9993 pure gold, the metal being consistent through the coin. These coins are always marked as to their weight ("1 ounce fine gold", or "1/2 ounce", etc.), and with the value of gold currently at $1580.00 US per ounce (July 2011), they aren't likely to be mistaken for novelty items advertised on TV at $40 or $50 each.