![]() ![]() it is found in volcanic areas or areas were volcanism has occurred sometime in Earth’s history. The fine-grain is due to quick cooling magma. Obsidian under the microscope showing a complex fine-grained texture. 11, Individually Wrapped Scalpel Suitable for Dermaplaning, Medical/Surgical Instruments, Industrial, Art & Craft. Another benefit to using obsidian scalpels is the reduction of healing time for surgical incisions. PARAMOUNT (Box of 100 Blades) Detachable High Carbon Steel Sterile Surgical Blade No. 'Its a very different feel to work with and you have to practice before you start using it in surgery. Given these unique characteristics a German company has created surgical tools that allow doctors to use obsidian instruments on patients who might be allergic to steel. 'If you look under the microscope at a steel scalpel edge it looks almost like a saw, it has teeth, whereas obsidian is smooth even microscopically. It is 3 times sharper than diamond and between 500-1000 times sharper than a razor or a surgeon’s steel blade resulting in easier incisions and fewer microscopic ragged tissue cuts. Surprisingly, the edge of a piece of obsidian is superior to that of a surgeon’s steel scalpel. Because of its sharp edges early man used it to make cutting tools or arrowheads. An obsidian scalpel has sharper edges than a scalpel made of surgical steel. Obsidian has a conchoidal (shell-like pattern) fracture, which means that it breaks like glass and does not form any flat crystal facets. Midwives would visit the expectant mother around the seventh or eighth. Obsidian is considered more of an igneous rock than a mineral, since glass does not have the crystal structure that defines minerals. ANTHROPOLOGY APPLIED Stone Tools for Modern Surgeons These electron micrographs of the tips of an obsidian blade (left) and a modern steel scalpel (right). Obsidian hand sample showing the glassy texture. The result is a silicon dioxide glass with magnesium and iron to give it the dark color. Obsidian is a volcanic glass created when magma is extruded from a volcano and quickly becomes quenched (cooled) so that crystals have almost no time to grow. Obsidian scalpels are being used in surgery. Today’s featured rock/mineral piece is on: Obsidian. The American Medical Association has reported that that is five hundred times sharper than the best steel scalpel. ![]()
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