The Future, page-255

'That other coy never found diamonds on surface of any real quality'

Not quite accurate.


"The average stone size was 0.7 carats per stone and the largest diamond recovered weighed 95.41 carats. The Camutue West pipe became known for producing a high proportion of large stones. The pipe, prior to initial mining was covered at surface by a thin veneer of eluvial gravel and the upper 5-10 metres was surface enriched - averaging a grade of 22 carats per hundred cubic metres (approximately 12 carats per hundred tonnes). The average grade of the lower portion of the pipe mined was reported as 10 carats per hundred cubic metres (or approximately 6 carats per hundred tonnes)."

http://www.abnnewswire.net/press/en...ive_Rights_MOU_for_Diamonds_in_NE_Angola.html