Jade was a rare and valued material in pre- Columbian Mesoamerica. The only source from which the various indigenous cultures, such as the Olmec and Maya, for example, could obtain jade was located in the Motagua River Valley in Guatemala. Jade was largely an elite good, and was usually carved in a variety of ways, whether serving as a medium upon which hieroglyphs were inscribed, or shaped into symbolic figurines. Generally, the material was highly symbolic, and it was often employed in the performance of ideological practices and rituals.
Lovely original oxidation!