Thread: La Roccia natural 12K-15K

I just ordered one of these stones, and was wondering if a Norton lapping stone is adequate for lapping this natural stone? Anyone here own one of the La Roccia stones?

I use whet and dry or my diamond hone.I own a Norton lapping stone but rarely use it because it is really rough.I was gifted two Imperia stones recently and was pleasantly suprised at the level they can finish at.good luck -CAM-

I lapped mine on 1/4 inch glass and several different wet/dry grits

Norton lapping stones are for their soft synthetic waterstones not naturals.

Originally Posted by onimaru55

Norton lapping stones are for their soft synthetic waterstones not naturals.

Ok, since the Norton lapping stone is useless for this, what is a practical, relatively inexpensive way to get this natural stone ready for use? My experience at stones stops at Norton, so please be descriptive.

Wet and dry sand paper on a granite tile from Lowes/home depot. or use loose grain silicon carbide powder on the aforementioned tile in the place of sandpaper..... or use a diamond hone .

Originally Posted by Blistersteel

Wet and dry sand paper on a granite tile from Lowes/home depot. or use loose grain silicon carbide powder on the aforementioned tile in the place of sandpaper..... or use a diamond hone .

That's the answer, or even float glass as the base.

silicon carbide powder works as well if not better than the sand paper.

Much better, IMO.

Can anyone point me to prior discussion on speculation of what the stones actually are?

Anyone with any clue on fineness vs. something like a y/g escher or other stone that is well known and consistent?