@ Bill DeShivs et al
I have never used Flitz, but it looks like it is an automobile finishing product. No way I would use it on ivory. Never.
To polish ivory, I use wet-dry silicon carbide sandpaper. 220, 320, 400, 600 grit. It must be done dry, mammoth ivory does not like a wet polish, bad things happen if you polish with water. If you have been diligent when polishing with 220 and 320 grit (think binocular magnifiers), when you get to 400 and 600 grit, ivory carries a fine polish, good to the eye, but to succeed, you must be thorough. If you want to be fancy, after 600 grit, 1000 and 1500 grit glosses it to a mirror finish (which will only last if nothing rubs against it).
I recommend Ren wax because it is best quality and while at first blush, it seems expensive, a jar will last at least one and one half lifetimes.