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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.
The analysis of obsidian debitage can reveal whether or not prismatic blade production occurred at a site and, if it had, what stages of production the process included. In other words, the types of manufacturing waste present (e.g., rejuvenation flakes and/or blades, platform rejuvenation flakes, etc.) at a site can inform archaeologists about ...
At that time, Tula was a fertile region near obsidian mines and on an important trade route. Its economic base was agriculture and the mining and crafting of obsidian. It appears the craft was practiced by about half of the occupants, along with the working of travertine and ceramics, taking over this function from Teotihuacan. [3]
If deep-sea mining follows the same trajectory as offshore oil production, more than one-third of these critical metals will come from deep-ocean mines by 2065, the federal agency estimated.
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.
Perlite is an amorphous volcanic glass that has a relatively high water content, typically formed by the hydration of obsidian. It occurs naturally and has the unusual property of greatly expanding when heated sufficiently.
The diverse landscape of the Armenian Highland was exceptionally favorable for the habitation of hominids of the Paleolithic Homo species.Here the necessary raw materials for the creation of stone tools were available: andesite, dacite, obsidian, as well as a rich variety of hunting animals and vegetable food, including wide variety of poaceae family plants, countless fresh springs, rivers and ...
The source of obsidian for cultures inhabiting the territory of and around Greece was the island of Milos; the Starčevo–Körös–Criș culture obtained obsidian from sources in Hungary and Slovakia, while the Cardium-Impresso cultural complex acquired obsidian from the island outcrops of the central Mediterranean.