Math In Determining Value Of Silver Coins.

I'd happily give you a link to silver coin melt values for North America but last time I provided that link I got censored. Let's see what the mods have to say.

Value or worth is calculated like this. Suppose you have a Canadian 1967 silver dollar. It weighs 23.3276g and is 80% silver (20% copper I assume? confirmation?)
31.1034768g makes a troy ounce, and that is the amount by which silver is quanitified and counted.
so 23ish/31ish= 0.75ish
now multilply that by the fineness (80% or 0.8)
and multiply that by the spot price of silver (high 17s)
(23.3276/31.034768)*0.8*17.97 = $10.81

And that is the value of a Canadian silver dollar. Incidentally, Krause catalogs have something called ASW or Actual Silver Weight. You can take that number (0.6 for Canadian silver dollars) and multiply that by the silver spot price.

So you have two formulas you can use.
ASW*SP (Actual Silver Weight times Spot Price)
or
W*F*SP (Weight times Fineness times Spot Price)

Current spot prices:
1143.40
17.97
In $CAD courtesy of BNN.

If you ware dealing with pounds, you need to know which pound to use. The troy pound is only 12 troy ounces, not 16 like a pound of anything else.

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That's a good question. Although that decision is above my pay grade, I'm pretty sure the answer would be "no." Remember, some of the sites on the list are simply unsafe (virus/malware) for your computer to navigate, and to release the list would sorta negate the protection we're trying to provide.

Now half an ounce of 90% silver would go like this.
OzT(weight)*Fineness*Price
0.5*0.9*17.97

so 8.7 ounces would be 7.92968 troy ounces. So it would be 7.92968 x18.08 x .9 = $129.03

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I must stress that the censored links are nothing personal against the poster. Since there is no list, there is no way to know until you try! Just remember: when it happens, understand that it is not your fault and move on.

to summarize what the mods are saying, seems like anything done in here is for our own good and no one should take offense to it.