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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.
Xochitecatl is located in a dominant position upon the summit of a 4 km-wide extinct volcano that forms a range of hills that rises approximately 200 meters above the floor of the Puebla-Tlaxcala Valley; the so-called Atlachino-Nativitas-Xochitecatl block, which is located in the centre of the valley.
Sculpture 1 was associated with a wooden staff and a dark green ax . Sculpture 2 was associated with a large obsidian flake, tied bundles of leaves and plants, a hematite ball, a pile of sandstone rocks "common to a number of other sculptures," [10] as well as fragments of human infant bones. Nearby to its east was the skeleton of an infant.
Helenite, also known as Mount St. Helens obsidian, emerald obsidianite, and ruby obsidianite, is a glass made from the fused volcanic rock dust from Mount St. Helens and marketed as a gemstone. [ 1 ] [ 2 ] Helenite was first created accidentally after the eruption of Mount St. Helens in 1980 .
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. Like all glass and some other naturally occurring rocks, obsidian breaks with a characteristic conchoidal fracture. It was also polished to create early mirrors.
During welding, the glass shards and pumice fragments adhere together (necking at point contacts), deform, and compact together, resulting in a eutaxitic fabric. [18] Welded tuff is commonly rhyolitic in composition, but examples of all compositions are known. [19] [20] A sequence of ash flows may consist of multiple cooling units. These can be ...
Balberta is a major Mesoamerican archaeological site on the Pacific coastal plain of southern Guatemala, belonging to the Maya civilization. [1] It has been dated to the Early Classic period and is the only known major site on the Guatemalan Pacific coastal plain to have exposed Early Classic architecture that has not been buried under posterior Late Classic construction. [2]
Considered a master piece of Mesoamerican and Maya art, the mask is made with over 346 green jade stone fragments, the eyes are made with shell, nacre and the pupils with obsidian stone. [ 1 ] The mask of Pakal is part of the permanent collection of the National Museum of Anthropology in Mexico City and it is exhibited at the Maya Room of the ...