The frictionites have rhodolite in them if I recall. I sold half a dozen of them for george wilson and kept (bought from george) a large unused pair that frictionite calls #821 and #825 - those are just bench stone sizes of each side of a frictionite #00.
They are one of the most satisfying feeling synthetic stones that I've ever used, it's a shame that the binder in them isn't used elsewhere. The slurry stone, IIRC, is just a rub stone to clean the surface. I don't think they were ever intended for anything other than razors, and the key with razors is to not quite remove an edge (so they may see a tiny bit coarse compared to some modern synthetic super finishers).
I eventually sold the 821/825 combination to someone in australia because I didn't have the heart to bash $300-400 worth of fairly rare vintage stones around in my shop to sharpen chisels and plane irons. The rest of the #00s went to local axe-man competitors in australia through a conduit there. They are driving the high prices on any stone that works well dry to touch up a race axe.
The norton axe-man razor hone is even worse (some get close to $1000). Some shavers end up buying those stones because they figure the expensive price means something good, but it's the axe people making them ridiculously expensive.
George told me that when he purchased those stones, they were $6 each in the 1970s. I sold them for him for about $210 each.
They are one of the most satisfying feeling synthetic stones that I've ever used, it's a shame that the binder in them isn't used elsewhere. The slurry stone, IIRC, is just a rub stone to clean the surface. I don't think they were ever intended for anything other than razors, and the key with razors is to not quite remove an edge (so they may see a tiny bit coarse compared to some modern synthetic super finishers).
I eventually sold the 821/825 combination to someone in australia because I didn't have the heart to bash $300-400 worth of fairly rare vintage stones around in my shop to sharpen chisels and plane irons. The rest of the #00s went to local axe-man competitors in australia through a conduit there. They are driving the high prices on any stone that works well dry to touch up a race axe.
The norton axe-man razor hone is even worse (some get close to $1000). Some shavers end up buying those stones because they figure the expensive price means something good, but it's the axe people making them ridiculously expensive.
George told me that when he purchased those stones, they were $6 each in the 1970s. I sold them for him for about $210 each.