Beginning Lapidary, Part 2: Grinding Polishing Facet ...
Beginning Lapidary, Part 2: Grinding Polishing. ... particles, such as diamond, bonded to their grinding surface or wheels made entirely of abrasive material, such as silicon carbide. The metal wheels are generally more expensive yet last for a long time. The abrasive wheels are less expensive and wear slowly with use. ... view our lapidary ...