How to Prepare Scratches on Rock

"Hi I'm Jason with Expert Village.com. We've just finished cutting the whole surface and doing all of the edges of the rock charm. You can see on the edge that we've went along, it's still square but it's not rounded all the way. It's no longer sharp. We've done that on all of the edges all the way around. Now the next steps are all going to be to polish, so you want any deep scratches to come out with the cutting bit first, and what I do so I can tell what the deep scratches are, is I take a black marker, any kind will work and I go over any, these ones are white, these scratches, that means they're deeper than the surface over here. So I'll just take a marker and draw over any of these marks that I see throughout. Anything that's white, I just color right over. There's a big one right there. What this does is lets you, it fills in the scratch and as you're cutting away, when the black line goes away that means you're level with the rest of the rock. You don't have to worry about there being scratches in your final thing and having to start all the way over. So after you get it all marked we'll go back over it with the cutting bit so we'll do that in the next step."