Silver is .999 AG it takes 31 grames to make a troy ounce. It takes 32 ounces to make a kilo of silver. Grams are perfect for change,barter,even novelty gifts but will always remain a solid store of value in bullion form unfortunatly the smaller the fraction the greater the premium sometimes.those who start out in silver or gold must start out a collection of atleast 31 grams to make change in a barter situation.