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As one final piece of evidence, how often do we have to lap bonded abrasive stones? How often do you lap a dmt (yes technically it is abrasive bonded to a surface, but for all practical purposes, it...

Sand is formed with covalentt bonds whihc don't dissolve. Things like lime is calcite which is ionic so it dissolves. If you were to have streams of deionized pure water it would be a pitiful...

Yes.... but a large rock of jasper is a large rock of jasper.... with a combined hardness harder than steel, so I don't see how the steel is going to keep refreshing the smaller crystals?

How can...

They don't. And won't. A coticule cuts with garnets that are within a certain size range, giving it it's grit. Naniwas, Shaptons, Nortons, all have little pieces of grit that do the work, most of the...

within reason the texture of a bonded abrasive doesn't matter. It will wear down/smooth out with use. This is what I argued with my sedimentary (and as I was corrected, metamorphosed sedimentary)...