Please hit like if you learnt something from this article. But obsidian blades are still better in terms of durability. Of course synthetic diamond blades have been made. Green, associate professor of family practice at the Medical Center, uses obsidian knives for removing moles and repairing torn earlobes. Under the microscope, you could see the obsidian scalpel had divided. Studies say that cuts made using these blades get healed much faster than the ones made by steel blades because obsidian blades can make extremely narrow cuts between the cells, and not tear the cells apart. Obsidian is a naturally occurring volcanic glass formed into a kind of rock by the. While blade edges made out of obsidian are not approved by the FDA, surgeon scalpels are still made using them. Right: Steel point under an electron microscope. Left: Obsidian tip under and electron microscope. Good quality blades can make cuts down to single molecules! That is about 500 times sharper than the sharpest steel blade. Obsidian is capable of being the sharpest knife in the world. Their edges, if made carefully using processes like pressure flaking process, can get up to 3 nm thick. A look at why most popular stone art knives do not cut the way we have heard that obsidian can. These were the reason, our ancient palaeolithic ancestors used to chip these rocks and made them as the tips of their spears and arrows.īlade edges made out of obsidian are so sharp that they don’t seem jagged even when seen under an electron microscope. Also, even if they are brittle, they are pretty durable in a sense that they can hold their edge for much longer times. Obsidian under the microscope showing microcrystalline. These edges can sometimes get much much sharper than your normal steel blades. Another benefit to using obsidian scalpels is the reduction of healing time for surgical incisions. When it breaks, it forms very sharp edges. So, if it isn’t handled with good care, it breaks pretty easily. It is very hard and of course, like most hard things are, it is brittle too. Obsidian is a naturally occurring black volcanic glass. Thank goodness, blades can get much finer. ![]() Yes, even those seemingly perfect Gillette blades can be that jagged under high magnification.
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