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Gold/Mining/Energy : Kensington Resources Ltd. (V.KRT) * Diamond in the rough! -- Ignore unavailable to you. Want to Upgrade?

To: Lilian Debray who wrote (2480)	8/11/1998 3:37:00 PM
From: average joe	Read Replies (1) \| Respond to of 5206

micro diamonds don't indicate macro stones period. they have different sources. over and out - aj

To: Lilian Debray who wrote (2480)	8/11/1998 4:34:00 PM
From: Lilian Debray	Respond to of 5206

To keep the facts straight "MICROS ARE UNRELATED TO MACROS? The problem with the micro-macro standard is that it ignores an emerging view that the "small diamond" population in a kimberlite has a distinctly different genesis from the commercial sized macros (according to De Beers, stones that do not fall through a 1.65 mm square screen). One of the speculations I have heard is that the smaller stones are created during emplacement, and that their abundance bears little relationship to the abundance of larger stones. If true, it would be helpful to know the actual size threshold that divides these distinct diamond populations in a kimberlite. From what I have heard, micro-diamond analysis does work in grade prediction. When diamond experts use the term "micro-diamond analysis", they do not mean analysis of those stones less than 0.5 mm that the market has been taught to view as micro diamonds, while stones bigger than 0.5 mm are macro diamonds. Micro-diamond analysis involves the analysis of all stone sizes from at least 0.1 mm up recovered during exploration drilling. It classifies micro-diamonds according to weight and/or size into groups to create a distribution profile from which an average grade for a pipe can be projected. Ashton, for example, can predict the grade of a zone in its Argyle deposit based on analysis of the micro-macros recovered in a core hole. De Beers has a complex system of relative stone size abundances it uses to project grade. Anybody who carefully read the Sept 10/97 Mountain Province news release on the revised grade/value estimate for the 5034 pipe will notice that De Beers did not just divide carats over the sample weight to get a grade, nor did it get the value by dividing the gross value of the parcel by its carat weight. Dia Met and BHP have let slip in a news release that they do rely on micro-diamond analysis to predict grade comparability for their Lac de Gras pipes. All these systems for micro-diamond analysis appear to have been developed through the statistical analysis of empirical data. What is not clear is whether a system of micro-diamond analysis works on every pipe in the world, or is restricted to a cluster of kimberlites. Quite likely micro-diamond analysis allows for cluster or pipe specific customization that improves the degree of accuracy." Kaiser Bottom-Fishing Report - Friday, February 27, 1998 canspecresearch.com./