Best Answer - Chosen by Asker
You can do it without the big fancy machines. They just make the whole process a lot easier.
If you're very lucky you can break your stone using a chisel and hammer and then grind it to shape. The problem is this causes fractures which may weaken your stone and possibly make pieces fall off that you don't want to fall off.
We used a normal bench grinder. Take off the tool rest. Build a shelf on the wall to hold a tank of water. Attach a small tube with a valve to the tank and make it drip on the grinder wheel. Now you can grind your rock and not overheat it. Place plexiglass shields in strategic places to prevent the water from splattering on you.
You start off with a coarse grind and you change to finer and finer grinds until the stone is as fine-finished as you can get.
Next, polishing....
We used a plywood wheel attached to a motor, on the wheel was a disk of cowhide. You drip water on this also.
You will need polishing compounds to polish this way, use finer and finer until you get the high polish you are after.
The stone is held on the end of a small stick with this plastic-like stuff called "Dop". You warm the stone and the dop over a candle flame and stick some dop onto the stone. Then you warm your "dop stick" and your stone until you can stick the stone onto the dop stick. It holds pretty good and makes it much easier to work the stone.
These are just the basics of grinding/polishing gemstones, but there is quite a bit more to learn to be able to do it right.
There should be a lot of info on Google.
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- Asker's Comment:
- choosing yours as B.A cos you wrote the most. I can't have large things like this I live 11 stories in the air in an apartment building.
I just needed to know if a dremel tool was right for the job. some ppl say it is but I can't find anything definitive online that says that.
Thanks for the help:)