Tezontle (Spanish: tezontle) is a porous, highly oxidized, volcanic rock used extensively in construction in Mexico. It is usually reddish in color due to iron oxide. Tezontle is a well-cemented, agglomeritic and scoriaceous rock.
Tezontle can be mixed with concrete to form lightweight concrete blocks, or mixed with cement to create stucco finishes. Tezontle is often used as the top layer of gravel on unpaved roads in Mexico. Many colonial buildings in Mexico use the reddish cut tezontle on their facades.
Many buildings use tezontle to create an aesthetic facade. Here are some examples.
- "Tezontle" (in Spanish). Retrieved 2009-01-04.
- Segerstrom, K. (1962) Geology of South-central Hidalgo and Northeastern Mexico, USGS Bulletin 1104-C, page 124.
- "Tezontle aggregate substitute optimization in building blocks mixture". IEEE. September 2007. Retrieved 2009-01-04.
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