The fine-grain is due to quick cooling magma. Obsidian under the microscope showing a complex fine-grained texture. Another benefit to using obsidian scalpels is the reduction of healing time for surgical incisions. 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. 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. Obsidian has a conchoidal (shell-like pattern) fracture, which means that it breaks like glass and does not form any flat crystal facets.
Obsidian is considered more of an igneous rock than a mineral, since glass does not have the crystal structure that defines minerals. Obsidian hand sample showing the glassy texture. an unusual research project that weds modern medicine with archeology and its study. The result is a silicon dioxide glass with magnesium and iron to give it the dark color. This is because on cellular level, obsidian knife cuts between cells. 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. half of the 20th cen- tury did Western medicine develop laser technology comparable to the obsidian scalpel used by ancient American Indian surgeons.
Today’s featured rock/mineral piece is on: Obsidian.
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