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I did order from Amazon..but not the exact stone you did. Mine is Obsidian and a good burnisher but not a hone. I am happy with the edges I got on two Kamisori from it. Howsomever it is the same as...

Just received mine.. Schools out as to it being a natural. More a piece of tinted glass. But! When lapping I do get a dark slurry from it on a 1K diamond.
I will be shave testing it on a couple of...

Some wall board sanding screens are Silicon carbide and work well dry. They are from about 90 grit up to 220. I ecently used one on the found mud hone. They do work on the hard hones also.
~Richard

Actually I did do a good bit with a Blue 80 grit on a cheap 4inch belt sander (Outside for sure and filter mask on! Not very flat but down to lappable! Not applicable here for the little stone....

Join the crowd!! Easiest is Silicon Carbide grains on a flat sheet of marble with a little oil. Barring that a silicon carbide wet dry paper on the marble tile. Apply a lot of time and effort. Take...

I appreciate the good news!
I look forward to a lot of grit on a marble tile and some fur off the top of a DMT220 and upward!
~Richard

So, either way we win!
Thank you!
~Richard

Hoo Kay! I suckered for one. :deal: Anything better than a same sized Barber hone for that price is a winner!
Thanks!
~Richard
PS, remember when the Arkies were the only naturals most anyone knew...