Yes, but you won’t know until you lap it. And it does not have to be 10k to finish. Very few natural stones are over 8k and still finish very fine.

As I said, depends on the price, for a dollar or two I would take a chance, more, you will have to decide.

With high grit natural finishers it is not just about the grit size, the kind of grit, the frangibility of the grit and binder and or the hardness of the stone all play a part in the finish it produces, oh yea… and the driver.