The obsidian he holds was carried from the Sierra de las Navajas, a quarry fifty kilometers to the north that has supplied this valley since the height of the Teotihuacán civilization. Between the years 200 and 400, this was the center of a vast industry, home to hundreds of workshops where masters of the craft produced tools of impossible sharpness. Today, the process remains an exercise in restraint, a dialogue between the person and the material using only abrasive sands, water, and grinding stones.
This encounter marks the conclusion of a journey through the Museo de Murales Teotihuacanos and the Palacio de Tepantitla. These sites preserve the delicate fresco work of the original inhabitants, whose descendants still live and work in the surrounding municipalities of San Martín de las Pirámides and San Juan Teotihuacán.
The history of these ruins is often a history of accidental discovery. In 1942, the Tepantitla complex lay hidden beneath an ordinary field until a farmer, intent on planting an agave cactus, struck the ancient masonry with his spade. What he uncovered was the "Paradise of Tlaloc," a vision of an afterlife filled with joy, painted by artists who likely used the same obsidian tools being demonstrated today.
The stone, a dark and brooding green in the palm, reveals a translucent golden-yellow heart when held against the high mountain sun. It is a quiet continuity; the artisan does not speak of grand historical shifts, but of the way the glass fractures and the steady pressure required to guide its shape. In this gesture, the distance between the modern world and the ancient metropolis collapses into a single, shared moment of labor.