Quote Originally Posted by Howard View Post
The garnet has a natural tendency to cleave off the corners of the dodecahedron which is ball shaped. The cleaved surfaces are sharp and very tiny. This is why the "abrasive milk" works so well.
I've always found it odd that so many descriptions of coticules imply that the entire garnet is released at once and is floating around in the slurry. I was surprised the first time that I looked at the slurry under a microscope. The slurry is actually comprised of many tiny pieces of crescent shaped fragments.