Another car boot hone.

[essexalan]

By toxic do you mean inclusions of larger abrasive particles? Not up on razor speak! I would expect your CF to get considerably finer than a Washita but then you are only honing the secondary on it so it should give you a good edge. The CFs I have are very fine and put a good sharp edge on my Japanese chisels at least as good as a Sigma 13K, however the finish does look different with the hagane being revealed more.

 

[MIGNAL]

Before using it test it with your geiger counter.

 

[D_W]

By toxic do you mean inclusions of larger abrasive particles? Not up on razor speak! I would expect your CF to get considerably finer than a Washita but then you are only honing the secondary on it so it should give you a good edge. The CFs I have are very fine and put a good sharp edge on my Japanese chisels at least as good as a Sigma 13K, however the finish does look different with the hagane being revealed more.

Yes, I may have mistakenly used the term toxic in the same sense that it's used in japanese stones (large abrasive particles that damage an edge rather than just simply an area that is more coarse).

 

[adrspach]

It can be used both ways. You can have coarser inclusions in which will damage your edge or you expecting certain finish of that edge and those inclusion are not going to damage the edge but can damage or impossible to make the required finish. It can be single crystal of different behaviour than the rest of the stone as well as patches of them. However there are hones which count on them in order to provide the abrasive action e.g. Moughton.