But the FDA does not allow its use on human patients.

Several veterinarians use obsidian scalpels to perform surgery, as it is believed this type of knife can make one of the cleanest cuts possible. Knife-enthusiasts keep obsidian alive by making and owning one of the sharpest knives there are, obsidian knives – but its proper use is fairly uncommon. Both its pottery and warfare aspect has fallen out of use. Nowadays, obsidian isn’t as valued as it used to. Most tribes who could gather obsidian used it for their weapons and commerce as well. Several deadly weapons were found around the entire continent. In the Americas, the native tribes used obsidian mostly for warfare. In the Middle East, Ancient Egyptians used obsidian tools to engage in ritual circumcision because of its sharpness and precision. Obsidian tools have been found throughout mainland Europe, which leads us to believe it was highly valued. This material was often found around Hungary, Slovakia, Greece, and throughout the Mediterranean. In Europe, plenty of tools were made out of obsidian. Because of that, we don’t have too many written records about this part of history.Įven though there are no written records for the majority of obsidian toolmaking history, there is plenty of archeological evidence to paint a picture of the obsidian trail throughout thousands of years. Written records, unfortunately, started at around 3200 BC, 696.800 years after the first obsidian tools were used. It is believed obsidian was first used back in 700.000 BC, and it might be even older than that. There’s no way to be sure how or why humans decided to use obsidian to make knives for the first time. From Argentina, all the way into the United States Italy, Greece, and Russia Down under, in New Zealand African obsidian rocks can be found in Kenya as well. You can find obsidian rocks all over the world, as long there’s volcanic activity there. Of course, any of these four scenarios happening do not ensure an obsidian-forming process – but it’s likely to happen. Lava can turn into obsidian in four different scenarios: at the edge of the lava flow, when lava goes airborne, when lava makes contact with water, and at the edge of a volcanic dome. This happens when lava comes in contact with air or water. The process is so quick atoms are unable to rearrange into a crystalline form and instead turn into a rock-like material. When a small amount of lava moves from the main flow of it all, they can cool down – but they do so rather quickly.

3nm obsidian knife