Where does obsidian originate

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Where does obsidian originate

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    Obsidian (/ ə b ˈ s ɪ d i ən /) is a naturally occurring volcanic glass formed when lava extruded from a volcano cools rapidly with minimal crystal growth.It is an igneous rock.. Obsidian is produced from felsic lava, rich in the lighter elements such as silicon, oxygen, aluminium, sodium, and potassium.It is commonly found within the margins of rhyolitic lava flows known as obsidian …

    Where Does Obsidian Form? Obsidian is usually an extrusive rock - one that solidifies above Earth's surface. However, it can form in a variety of cooling environments: along the edges of a lava flow (extrusive) along the edges of a volcanic dome (extrusive) …

    Obsidian, used for blades, flakes, and dart points, was imported from highland Mexico and Guatemala. Most items were obviously for the luxury trade, such as iron ore for mirrors and various fine stones such as serpentine employed in the lapidary industry. …

    Obsidian originating from Guatemala was widely used in Mesoamerica and is found as far north as the Yucatán Peninsula, moving via a well-developed long-distance trade network that inter-connected much of the Maya area. Newer and tentative additions to the Guatemalan source area are Jalapa and Sansare.

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