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- [5] DE-BEERS COMPLETES SYNTHETIC DIAMOND GRIT RANGE INDUSTRIAL DIAMOND REVIEW, 1978, (SEP): : 322 - 322
- [6] 38 MM AMBORITE INSERT ANNOUNCED BY DE-BEERS INDUSTRIAL DIAMOND REVIEW, 1983, 43 (04): : 188 - 188
- [7] EXPANSION OF DE-BEERS INDUSTRIAL DIAMOND CENTER AT SHANNON MACHINERY AND PRODUCTION ENGINEERING, 1971, 119 (3085): : 922 - &
- [8] NEW DE-BEERS GRIT PROVES ITS WORTH IN PRODUCTION INDUSTRIAL DIAMOND REVIEW, 1970, 30 (357): : 311 - &
- [9] NEW DE-BEERS BREAKTHROUGH - HIGH-QUALITY SYNTHETIC BOARD INDUSTRIAL DIAMOND REVIEW, 1979, (OCT): : 369 - 369
- [10] SPINEL ZONATION IN THE DE-BEERS KIMBERLITE, SOUTH-AFRICA - POSSIBLE ROLE OF PHLOGOPITE CANADIAN MINERALOGIST, 1983, 21 (FEB): : 41 - 58