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Obsidian scalpels older than 2100 BC have been found in a Bronze Age settlement in Turkey. [48] In the eastern Mediterranean area the material was used to make tools, mirrors and decorative objects. [49] The use of obsidian tools was present in Japan near areas of volcanic activity. [50] [51] Obsidian was mined during the Jōmon period.
Obsidian projectile point.. Obsidian is a naturally formed volcanic glass that was an important part of the material culture of Pre-Columbian Mesoamerica.Obsidian was a highly integrated part of daily and ritual life, and its widespread and varied use may be a significant contributor to Mesoamerica's lack of metallurgy.
Despite being sharper, prismatic obsidian is also considerably more brittle than steel; obsidian blades of the type used on the macuahuitl tended to shatter on impact with other obsidian blades, steel swords or plate armour. Obsidian blades also have difficulty penetrating European mail. The thin, replaceable blades used on the macuahuitl were ...
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Edziza obsidian found in coastal areas of southeast Alaska. Edziza obsidian is a naturally formed volcanic glass found at the Mount Edziza volcanic complex in northwestern British Columbia, Canada. It occurs in at least four geological formations of the volcanic complex and was widely used by indigenous peoples during the pre-Columbian era.
Obsidian is a personal knowledge base and note-taking application that operates on Markdown files. [3] [4] [5] It allows users to make internal links for notes and then to visualize the connections as a graph. [6] [7] It is designed to help users organize and structure their thoughts and knowledge in a flexible, non-linear way. [8]
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Obsidian from the Chivay source has been chemically identified among artifacts from over fifty sites in the south-central Andes. Chivay obsidian was the predominant type found at the Archaic and Formative site of Jiskairumoko on the western side of Lake Titicaca in the Ilave Valley of Puno, Peru.