... prepared as double polished petrographic thin sections (30 μm thick), and not dimpled. In fact, it has been observed that dimple grinding undermines geological sample integrity. To preserve sample integrity, mechanical thinning in most cases was accomplished manually, using carborundum abrasive...

... occurrence of SiC has been challenged scientifically for a long time because contamination issues arise from carborundum, which is widely used in the geological lab as cutting and abrasion material ( Milton and Vitaliano 1985 ). Although SiC inclusions in diamond from the Fuxian kimberlite confirm that SiC...