Quote:
Originally Posted by loripo  Other materials have been used for stone tools, such as obsidian, which I understand is used for scalpels as it gives such a fine, strong edge. (Not sure if all materials used needed the property of conchoidal fracturing to give the sharp edges ) |
I just found this little discussion on obsidian scalpels...
What's the deal with Obsidian Scalpels?
Very interesting stuff. Points to note...
Extremely sharp, however, extremely fragile.
Only suggested for use by manufacturers on very soft tissues.
Not approved for use on humans by the medical authorities, doctors who are using them seem to be doing so without approval.