Today I was working on a carved piece of chrysoprase, polishing it
with cerium oxide on a dampened wooden dowel, and with a flexshaft.
Using magnification, I use 2.75X, I could clearly see a little cloud
racing across the stone, even 2 or 3 mm away from the area I was
polishing. The polish, by the way, with some serious work, is glass
I don’t know what’s causing the cloud, but I suspect it’s some sort
of molecular change. It doesn’t require much pressure and the stone
doesn’t get very hot. ONe thing that also happens, after a while is
that the cerium disipates. I suspect the surface of the stone is
slightly removed and becomes the polish. I know that this can be
true with jade, at least with nephrite. That’s why heat is so
important with jade.
Try it for yourselves. It’s slick, No pun intended?