Ah right. So are these low quality 'Emery' stones a brand? Or just a type? What are they like? I've had quite a few low quality AlOx/SiC stones, but never one marked or stamped 'emery'.
It'd be interesting to know whether you could still get actual Naxos Emery whetstones that haven't been crushed up and re-formulated. Like Mr. Pliny presumably had...
Behold my nomination for worst sharpening stone ever, and they must of sold millions of them.