Obsidian is hard, brittle, and amorphous; it therefore fractures with sharp edges. In the past, it was used to manufacture cutting and piercing tools, and it has been used experimentally as surgical scalpel …

Specifically, a fragment edge of Obsidian can be edged down to 30 angstroms. One angstrom is equal to a one hundred millionth part of a centimeter. In short, it is pretty darn small. 30 angstroms is still …

Apr 15, 2025 · How Sharp Can Obsidian Get? Obsidian’s sharpness is a function of its unique material properties. It’s hard, brittle, and amorphous – lacking the crystalline structure of many other rocks. …

Discover the razor-sharp world of obsidian knives! Learn how they stack up against steel blades with precision testing. Explore more insights here.

Nov 25, 2025 · Obsidian, a naturally occurring volcanic glass, has been claimed to be the sharpest material on Earth since ancient times when early humans first shaped its edges into tools. It …

Jun 13, 2025 · Obsidian is incredibly sharp but also very brittle. Brittle materials like obsidian break or chip easily under pressure, making them much less durable than steel knives.

May 25, 2022 · Obsidian knives are currently the sharpest possible knives known to man. Their staggeringly thin blades are the reason for this. The way that obsidian breaks are known as a …

Jan 4, 2025 · Due to its unique physical properties, obsidian can be struck or polished into extremely sharp edges, even sharper than modern steel knives. This property made obsidian discovered and …

Jul 10, 2025 · Obsidian blades can be honed to an edge that is mere nanometers thick. When fractured, obsidian tends to split in a conchoidal manner, leading to an exceptionally sharp edge. This results in …

Jun 13, 2023 · In conclusion, obsidian blades are incredibly sharp, capable of achieving a level of sharpness that is superior to most, if not all, metal blades. Their ability to make clean, precise cuts …