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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.
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 ...
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.
Here, ash is typically welded together and breccia is laden with rhyolite and obsidian fragments. Middleton Ridge formed more than one million years ago and is accompanied trachyte and rhyolite flows. By comparison, Green Mountain formed as recently as 395,000 years ago with trachyte flows and pyroclastics grouped around a mafic scoria cone.
Most commonly, volcanic glass refers to obsidian, a rhyolitic glass with high silica (SiO 2) content. [7] Other types of volcanic glass include the following: Pumice, which is considered a glass because it has no crystal structure. Apache tears, a kind of nodular obsidian.
Libyan desert glass A large sample with mass 26 kg. Exhibited at the National Museum of Natural History in Paris in 2018.. Libyan desert glass or Great Sand Sea glass is an impactite, made mostly of lechatelierite, [1] found in areas in the eastern Sahara, in the deserts of eastern Libya and western Egypt.