Qallwa (Andagua)

Qallwa, in the context of Andagua, Peru, refers to a specific type of volcanic rock found in the Andagua Valley, also known as the Valley of the Volcanoes. It is a dark-colored, vesicular lava rock, characterized by its porous texture due to trapped gas bubbles that solidified as the lava cooled. Qallwa is a significant component of the volcanic landscape in the area, forming part of the lava flows and volcanic cones that define the Andagua Valley. The term is often used locally to describe this particular type of volcanic rock, distinguishing it from other geological formations. The presence of Qallwa provides evidence of the region's volcanic activity and geological history. It is used in local construction and can be observed throughout the valley, contributing to its unique appearance.