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Gold/Mining/Energy : ARP - V Argentina Gold -- Ignore unavailable to you. Want to Upgrade?

To: Robert who wrote (1058)	11/4/1998 4:03:00 PM
From: Claude Cormier	Read Replies (1) \| Respond to of 3282

<<Are they quoting average grades in troy ounces per ton?.>> I checked a few times and such was the case. But the norm is now to give it in grams...so I multiply by .032 to get the try ounces eq. <<I'm skeptical about 100 Million tons at an average grade of 0.1 ounces of ton. >> I am more than skeptical as well...so far I can read only 20M tons... but will see... hole 87 may put a stop to the expansion of the strike lenght..or it may propel the stock higher. Fun watching. Are you watching as well VOY's current work at Gualcamayo... Could be bigger than Veladero!!

To: Robert who wrote (1058)	11/6/1998 1:48:00 PM
From: E. Charters	Read Replies (1) \| Respond to of 3282

I don't know where you are getting that ratio. The grams per metric tonne is simple to resolve though. A metric ton is 1 million grams. So 3 parts per million is 3 grams per tonne. A tonne weighs 2204.663 avoirdupois pounds. So 3 grams per tonne is less in grams per short ton of 2000 pounds by a factor of 2000/2204.663. So 3 grams becomes 2.72 grams per short ton. 2.7215/31.1029=.0875 Troy ounces per short ton. Another conversion technique from parts per million is to know that there are 29,166.6666 Troy ounces in a short ton. So you convert ppm to parts per 29,166.666 the ratio is 3/1000,000=X/29,166.666. Alternatively you can just multiply by .029167 to get ounce Troy per short ton form parts per million or grams per metric tonne. The Troy ounce was derived from American/British apothecary measurement which used a system of grains to the Troy ounce and the Troy pound. There are 24 grains to the pennyweight and 20 pennyweights to the Troy ounce and 12 Troy ounces to the Troy pound. Note that the Troy pound is about 373 grams. The avoirdupois pound is near 454 grams. The British used a system of pennyweights gold to the long ton (which was used for pig iron.) The long ton was 2240 pounds. It was the more common weight associated with the term ton until about 1935. It was still used to describe tons of iron until quite recently. For this reason many old mines in Canada seem to overreport their gold when referring to ounces per ton as it was the larger ton that was being referred to. There are 32,666.666 Troy ounces in a long ton. EC<:-} mailto:echarter@vianet.on.ca The Canadian Mining Newsletter