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Gold/Mining/Energy : Winspear Resources -- Ignore unavailable to you. Want to Upgrade?

To: wayne cath who wrote (10624)	12/17/1998 9:02:00 AM
From: Walt	Read Replies (1) \| Respond to of 26850

Morning all, had a brilliant post last night but lost it so will try again this morning. Im trying to come up with a good analogy for micro macro diamond counts. Pretend you go out and buy a big bag of the mixed bird seed. It has everything in it from tiny little seeds to big honking seeds. You take a scoop out and count all the seeds and divid them uo into their different sizes. It gives you a statistic ratio between the smallest to the largest. Thats what the bulk sample is suppose to do and you have enough seeds in the scoop to make your data meaningfull. Theoretically if you takeother scoops out you should get the same ratio. Now imqagine taking a sample from another part of the bag only this time you can only take an eyedropper full. Thats like a drill hole. The cores are small in diameter so big diamonds arent going to fit in but by knowing the ratio andcounting thenumber of small seeds you would have some idea ofthe big seeds. Its not a great analogy I know but a kimbeerlite pipe or dyke has a ratio of small diamonds to big diamonds. For convience lets just imagine a kimberlite that returns 1000 micros 10 one carrot stone and 1 big ten carrat diamond from a bulk sample. Now you drill a small core from another part of the pipeandcome up with 2000 microsgrade. you would expect that part of the kimberlite mass to thus contain 20one carrat stones and 2 big diamonds. the same reasoning applies to gem quality and colour. So they are trying to determineor get a rough idea of the various ratios so they can extrapolate grade by the diamond counts in the small drill cores when comparing them to the original bulk samle. the larger bulk sample this winter will add even more data to this. The more datayou have the better your estimatesor predictions. maybe the three large stones in the original bulk sample were a fluck, maybe if you took another sample that size you would only get two big stones, but then again you might get four or five. hope that helps regards Walt