Obsidian is a type of naturally occurring glass, produced by volcanoes (igneous origin) when a felsic lava cools rapidly and freezes without sufficient time for crystal growth (see glass transition temperature). It is commonly found within the margins of felsic lava flows, where cooling is more rapid.
Usage – Obsidian Stone
A general muscle tissue healer; for bacterial and viral inflammations. Can be used for removing blocks to the healing process. Grounds spiritual energy into physical plane. Aids healing in the areas of blood circulation, warming of the extremities and accelerates wound healing. Provides strength and wisdom. Physically it benefits the stomach, intestines, muscle tissue, and can rid one of bacterial or viral infections.
Obsidian has been used for thousands of years for toolmaking. In 1967 archaeologists working at the site of Tlapacoya, southeast of Mexico City, uncovered a well-made blade of obsidian associated with a radiocarbon date of about 21,000 BC. The Aztecs used a great deal of obsidian for tools, including sacrificial knives, the eyes of carving of their Gods, and even mirrors