Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Gold/Mining/Energy : ASHTON MINING OF CANADA (ACA) -- Ignore unavailable to you. Want to Upgrade?

To: Michael Markham who wrote (3859)	2/10/1998 3:54:00 PM
From: Jesse	Read Replies (1) \| Respond to of 7966

Hi Mike-- while I'm certainly no expert, the fragmentation discussed occurs in the RC (reverse circulation) drilling, which, to my knowledge, is usually 2-3" and less, in DE. This was what Ashton used for first stage drilling. How can a diamond become shards, you ask, if it's the hardest substance on earth known to man? Read the following and it should easily clear that up for you: amnh.org (cleavage) As you point out, the larger diam.core drills, commonly used for minibulk and bulk sampling, will have less damaging effect on the matter at hand, since more of the substance extracted is left in tact. -Gotta Run- Cheers, -j :> ps, I assume the larger the core the better the sample for assay and interpretation

To: Michael Markham who wrote (3859)	2/10/1998 11:10:00 PM
From: maintenance	Respond to of 7966

The size of the sample relative to the entire area under consideration is what determines how representative the sample is. It is the same thing when polls are conducted. They always include or should include a confidence interval. Somthing like "accurate to within 5%". A sample of a kimberlite pipe that is .21t and contains .28C would have a confidence interval near zero. If you were to sample the entire pipe you would have a confidence interval of perfect or accurate to within 0%. As the smple size gets smaller the accuracy gets poorer. This is particularly true if what you are trying to prove is expected to be small relative to the size of the whole. In the case of diamonds in a pipe we would expect there to be a lot more material that is not diamond than is diamond.