Obsidian forms sharper edges than any best surgical steel can do. The reason for the sharpness is speculated because of its structure and the way it fractures. Being an igneous rock, obsidian illustrates conchoidal fracture. As this natural glass cools very rapidly, the residual stresses in ...
The reason for this is that a fractured edge of obsidian is far sharper than any surgical steel blade manufactured. Research on the effectiveness of obsidian scalpels has shown that wounds heal faster, with less scarring, and without complications. The use of obsidian in jewelry, stone carvings...
If you could hold a piece of obsidian in your hand, it’s usually black or dark grey and very shiny and glasslike. It’s often cracked and broken with sharp edges. You can see than ancient people had many uses for obsidian, since it can hold a very sharp edge. In fact, surgeons t...