Thread: Anybody have any ideas as to what this might be?

Here's a quick test I did on a knife - the sides of the knife started out with a pretty dull finish from a DMT 320 plate, so I didn't expect to see much of a difference in finish since this is a pretty fine stone. I slurried up the stone with an Atoma 400 for about 10 - 15 seconds then started honing on the side of the knife - I only honed on one side so I could compare. The slurry started to darken after about 20 - 25 strokes and I only honed on the side of the knife for a couple minutes. The pics show an original DMT 320 finish, the side I ground with the new stone (you can start to see the mirror reflection showing up, but the original's a really coarse finish so it's only showing in a few spots) and the stone after the couple minutes of honing - the darker slurry is from after honing, the lighter is fresh slurry I raised after honing for a visual comparison.