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Obsidian artifacts are common at Tell Brak, one of the earliest Mesopotamian urban centers, dating to the late fifth millennium BC. [44] Obsidian was valued in Stone Age cultures because, like flint, it could be fractured to produce sharp blades or arrowheads in a process called knapping.
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.
Obsidian is rare, though sizable obsidian (even large boulders) are common at Newberry Volcanic monument in central Oregon. The reason it is rare is because it forms from high-silica lava, must cool quickly before crystals can form, and must be free of volatiles.
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 ...
Opals too thin to produce a "natural" opal may be combined with other materials to form "composite" gems. An opal doublet consists of a relatively thin layer of precious opal, backed by a layer of dark-colored material, most commonly ironstone, dark or black common opal (potch), onyx, or obsidian. The darker backing emphasizes the play of color ...
Jennifer Hudson says "everything is wonderful" when asked about her relationship with Common at the 2024 Daytime Emmy Awards.
At least two people have died as severe storms and tornadoes tore through parts of Texas and Mississippi on Saturday, officials said, while a parade of atmospheric river-fueled storms batters the ...
Maya pendant in the Los Angeles County Museum of Art Map showing the locations of some of the main jade, obsidian and serpentine sources in Mesoamerica. The archaeological search for the Mesoamerican jade sources, which were largely lost at the time of the Maya collapse, began in 1799 when Alexander von Humboldt started his geological research in the New World.