He used to sell on the various forums and ebay, but has his own shop online now. Pricey for what most of it is.
The baker has a deep rock and a few other vintage coticules, but most of what he sells comes from an old wall someone sold him and he proceeded in to hones. He calls most of them hybrid or a few other layers which they are not. Particularly his overtly green which he calls verte. From learning where this wall came from his description and others descriptions of how hard these stones are along with the colors. I do not think they are true coticules in the way we think. These are more solid hard all the way through like a hybrid, but no typical coticule side to use. These I believe are called pseudocoticule. Useful for final finish, but you won't be slurring one to work up the edge from the get go. My limited understand of these is they don't possess the garnets in numbers like a typical coticule and are of a higher quartz concentration characterized by a quartz + spessartine + hematite assemblage.
if you used that with oil you could be cool and get an ark for the backing, but I would probably just get slate or make some holder for it
