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Message:: [QUOTE="-jeffB, post: 1051596, member: 27832"]One silver dime, as minted, weighs 2.5 grams. Heavily circulated, they lose some weight, perhaps up to 10% in an AG specimen, or so I gather from other threads here. One troy ounce is 31.10 grams. One avoirdupois ounce is 28.35 grams. Most eBay auctions of this sort say "at least one ounce", so I'd expect to get 12 dimes. Many eBay auctions say "ONE OUNCE OF SILVER COINS", then trumpet the current price per ounce of silver, neglecting to mention that (a) they're selling only about 90% of the troy ounce for which silver prices are quoted, and (b) only 90% of that is actual silver. So, the "spot price" of one "ounce" of silver coins is actually close to 80% of the spot price of silver itself. Beware of auctions that offer 1/4, 1/2 or one troy pound -- a troy pound is defined in terms of the larger troy ounce, but contains only twelve troy ounces, not sixteen! So a troy pound is significantly less than an avoirdupois pound -- 373.24g vs. 454g, or only 82% of the weight. The weight of dimes, quarters and halves is exactly proportional to their value. So, given equal wear, one half contains as much silver as two quarters or five dimes. Silver dollars weigh more proportionately, so a silver dollar (Morgan or Peace) contains as much silver as about 10.7 dimes.[/QUOTE]