Board Thread:Off Topic/@comment-26397825-20160609071212/@comment-25396609-20160709205727

they have yet to approve obsidian scalpels for use on humans, but they are growing in popularity among veteranarians.

Obsidian blades are both ludicrously sharp, and have a perfectly even edge down to a molecular level.

Only real downside to obsidian is that it's rigid and incredibly brittle.