37 Kilograms of Mica—Used Today in Electronics—Found in the Ancient City of Teotihuacan

By: April Carson



Mica was discovered in Teotihuacan at a concentration of more than 37 kg per ton. Plates, triangles, trapezoidal forms, rectangles, squares, and circles were among the shapes found; as well as little pieces and dust.


What was once the biggest ancient city in pre-Columbian America is now found in Mexico's sub valley.


Teotihuacan, with a population of around 150,000 people, is a mysterious ancient metropolis. Although the civilization that built Teotihuacan is unknown to history, academics have pondered about them for centuries.


We owe much of what we know about Teotihuacan and its fascinating three pyramids to the Aztecs, who discovered it in ruin during their conquest of Mexico.


Teotihuacan was one of the first great cities in the Western Hemisphere prior to the 1400s. The name Teōtīhuacān was most likely given by the Nahuatl-speaking Aztecs hundreds of years after the city's fall, which is thought to have been around 550 CE.



The name Teotihuacan has been translated as "the birthplace of the gods" or "the place where gods were created."


It is uncertain who built it, and what its original name was. We do know, however, that they constructed a metropolis that would endure for thousands of years and be unrivaled in its category.


When the Aztecs came upon Teotihuacan, it was already in ruins. It was so ancient to the Aztecs that they believed it had been there, in a city they would later name Teotihuacan, where the gods created the world.


Before the Aztecs came to Teotihuacan, little is known about what occurred there. For example, ancient Maya hieroglyphs refer to Teotihuacan as "The Place of Reeds," according to ancient Mayan writing.


The ancient inhabitants of Teotihuacan, as well as the city, are known as teotihuacanos.


There is no agreement among academics about the city's exact founding date or who its original builders were. According to experts, the city was built around one thousand years before the Aztecs arrived in Teotihuacan.


It is so old that it was already ancient to a society whose age is remarkable for us today.


Teotihuacan was one of the largest cities in Mesoamerica during its flourishing. It is estimated that the city covered more than eight square kilometers at its height, and as much as 90% of the valley's population lived there.


Teotihuacan was unlike any other city of its time. When it was finished, no other metropolis could match Teotihuacan in terms of construction or design. It was intricately planned and constructed, and "magically" completed.


About a mile to the west, towards the Valley of Mexico, is the Temple of Quetzalcoatl (Kukulkan) and its surrounding structures, which include three primary pyramids: The Pyramid of the Sun, the Pyramid of the Moon, and the Pyramid Of the Feathered Serpent.


The so-called Pyramid of the Sun is the city's most important temple. Its real name is a mystery.


Despite the fact that we don't know its original name, experts believe the massive pyramid was built in two separate time periods.


The first stage is thought to have begun around 100 CE.


The Pyramid was built gradually to its present form throughout the third dynasty.

The builders completed a pyramid that was 225 meters wide and 75 meters tall during the second phase.


The second stage was when the builders constructed an altar on top of it. The Pyramid of the Sun, which was at that time the world's third-largest pyramid, was finished.


The Great Pyramid of Giza is the world's second-largest pyramid. The Great Pyramid of Cholula, located 90 kilometers away, is the planet's largest pyramid ever completed.


The Pyramid of the Sun's second remarkable feature is that, like many other pyramids across the world, it was erected on top of subterranean caverns.


The two main pyramids at Teotihuacan are the Pyramid of the Moon and the Pyramid of the Feathered Serpent.


The second-largest monument at Teotihuacan is the Pyramid of the Moon, which is appropriately named. The Pyramid is located at the end of Avenida de las Muertes and is connected to the rest of the city via a staircase.


The Pyramid of the Moon was thought to have been utilized in ancient times as a meeting spot where city authorities and priests would conduct animal and human sacrifices, according to legend. It was also there that the priests afterward committed the murders.


The Pyramid of the Moon has been reconstructed at least six times throughout history, with each renovation adding new features and elements to the existing structure. The current Pyramid is made up of seven distinct layers.


The Pyramid of the Moon is 43 meters tall. Its base measures 147 meters from west to east, while it spans 130 meters in the north to south direction.


The little Pyramid of the Feathered Serpent, while not nearly as large as its two neighboring pyramids, is still quite stunning.


A feathered serpent is shown on each side of the Pyramid, which was later confused with Quetzalcoatl or Kukulkan by other civilizations. There are two hundred and sixty feathered serpent heads on the side of the Pyramid, neatly arrayed between the platforms. The Feathered Serpent temple was constructed as a six-layered step pyramid.


When possible, more than 75,000 relics have been studied, cataloged, indexed, investigated and restored.


Mica, on the other hand, is one of the most perplexing things discovered at Teotihuacan.


Mica in Teotihuacan, what was it used for?


The majority of the Mica that was found and removed from the Pyramid of the Sun in the 1900s came from Teotihuacan. It was subsequently sold because to its value.


A mica mineral is a mineral that belongs to a family of minerals with physical and chemical characteristics that are comparable. “Since they occur in distinct layers, all of the above minerals are known as sheet silicates. Micas are rather light and soft, and Mica's sheets and flakes are pliable.”


However, traces of Mica were discovered on other Teotihuacan sites, implying that the material was not randomly applied to the Pyramid of the Sun. The walls of the Palace of the Butterflies in Teotihuacan are adorned with a variety of circles made out of reflective Mica, which were used for astrological calculations.


These, according to experts, are the earliest representations of heavenly bodies.

However, few people are aware of the amount of Mica that was discovered at Teotihuacan.


Mica is currently utilized in a variety of electronic equipment because it is an excellent insulator.


Mica is most often used as a thermal insulator in the electrical sector. Mica Minerals, which are naturally occurring on the Earth, are occasionally crushed and refined into a fine powder that is then utilized in cosmetics.


In total, Mica has been located in Teotihuacan at a weight of 37 kg.


Almost 90% of the Mica found in Teotihuacan is concentrated in two architectural complexes: the Viking Group, south of the Pyramid of the Sun, and Xalla's palatial complex, north of the Pyramid of the Sun. Both are two distinct parts linked to city's ruling aristocracy.


Xalla's nearly 37 kg of Mica was discovered in the form of plates, triangles, trapezoidal figures, rectangles, squares, and circles, as well as tiny pieces and dust.

This is fascinating since archaeologists are still trying to figure out the role of Mica in Teotihuacan culture and why so much of it was utilized in the structures.


Aside from the fact that it was a "alien" substance dominated by Teotihuacan's ruling elite, there is nothing we know for certain. The Florentine Codex, for example (Sahagun, 1963, p.235), describes mica as a golden-hued mineral that resists high temperatures; the Mexicas (Aztecs) appear to have referred to it as metzcuítlatl or "Moon's Excrement."


Teotihuacan's ruling class app