A number of years ago, I bought an Icebear 10k hone. At the time it felt easier to use than some of the typically harder 10k hones, well I kept it, and pulled it out the other day,and used it after a 8k Nani Superstone, more or less to see what it was like. I believe, being King related, that it is clay based. Definitely softer than a 10k nani SS, and when using slurry with it gave an edge that under the loupe, looked tidy, and I shaved with it, (Not doing my usual finish with the gok 20k) I had a very comfortable smooth shave, different from the 'clinical' edge of the 20k (IMHO). Anyone else got anything to say about this stone? After the most recent use of it, it is one of those numerous kilo's of rocks that inhabit my garage, a collection that most likely will continue to grow. bob