For the best selection of Laguna Agate Products, check out Keycap Quarry’s wide selection below. Laguna Agate is a product of volcanic activity and mineral-rich fluids that seep into cavities within the host rock. Over time, these fluids deposit layers of minerals, creating the intricate bands and swirls that define Laguna Agate’s appearance. Its spectrum of colors, including reds, oranges, yellows, blues, and greens, is a testament to the diverse mineral compositions present during its formation.