About three weeks ago I bought a Guangxi river stone of of the ebay from a polish guy, Marek, who sells a lot of them. The one I got was really hard, narrow and had issues with cracks in between layers and pockets of sandiness, so I got him to trade it out for one that had no density issues and is close to three inches across and eight inches in length. It is, as some have indicated with the better ones, a dull grey with occasional tiny flecks that for the life of me appear under magnification to be tiny perfect squares of gold-ish colored metal. Really tiny, like the size of a grain of table salt. a bit strange. Anyone else see this in a C12k?
The draw on this stone feels awsome. It came with a chunk of natural stone for slurry, but creates its own slurry with some time. The residue is like talc.
I am new to razor honing, but I have lived with a knife in my hand for many years as a chef. After lapping both sides, I finished a razor on it today and have to say, and the edge feels pretty good.
David