- Naturally occurring sediments that are produced by chemical actions resulting during the weathering of rocks. Clays are composed of hydrated aluminum silicates, such as Kaolinite, Illite, Palygorskite, Attapulgite, Bentonite, and Montmorillonite. Small amounts of other minerals can change the color (white, yellow, brown or red) and texture of the clays. Clays may include all earths that form a paste with water and harden when heated.
- The seventh of the seven main chronological phases recognized in Andean archaeology, generally dating 1476-1534 CE, during which the Inca established an empire controlled from Cuzco, which eventually reached from central Chile to southern Colombia. The period ends in 1534, the year marking the fall of the Inca empire after the Spanish conquest.
- Of or belonging to the nation of Peru or its people.
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