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 : Winspear Resources -- Ignore unavailable to you. Want to Upgrade?

To: Rocket Red who wrote (19244)	5/9/1999 5:12:00 PM
From: teevee	Read Replies (1) \| Respond to of 26850

Rocket Red, here is some more playing with numbers I did over on the other forum: Author: teevee -- Date:1999-05-09 13:33:12 Subject: How many and How big? Willp, Here is some pre-1975 DeBeer's data not readily available for your consideration (statisticly that is): Mine(Dutoitspan); average size of large crystal exceeding ten carats (20.1carats); Ratio of total weight of large crystals to total production 17.1%; Number of large crystals per 100,000 carats 848. Mine(Wesselton); average size of large crystals exceeding 10 carats (15.8 carats); Ratio of total weight of large crystals to total production 2.1%; Number of large crystals per 100,000 carats 135 Mine (Bultfontein); average size of large crystals exceeding ten carats (15.0 carats); ratio of total weight of large crystals to total production 0.9%; Number of large crystals per 100,000 carats 58 You may also find this data interesting: Mine(Dutoitspan); average size of crystals exceeding 100 carats in size (137.9 carats); ratio of total weight of large crystals to total production 0.84%; number of large crystals per 100,000 carats 61 Mine(Wesselton); average size of crystals exceeding 100 carats (134.7); ratio of total weight of large crystals to total productin (nil);number of large crystals per 100,000 carats (none) Mine (Bultfontein); average size of crystals exceeding 100 carats (134.0); ratio of total weight of large crystals to total production 0.01%; number of large crystals per 100,000 carats (1). At Snap lake there was one diamond over ten carats and a fragment inferred to represent a diamond of 14 carats........this represents a ratio of about 10.6% of total weight of large crystals over 10 carats to total carat weight recovered from the mini-bulk(not as good as Dutoitspan's 17.1%).....assuming the grade of the 6000 tonne bulk sample is 1.5 carats per tonne, we might reasonably expect a recovery of 47 diamonds greater than 10 carats in size(an average of about 20 carats per stone)......and assuming that 0.52 % of total weight recovered is made up of crystals larger than 100 carats in size, perhaps 3 diamonds greater than 100 carats in size(averaging 135 carats per stone) will be recovered!!!!!!!! regards, teevee PS: I threw the envelope out right away:-)