gems, jade, jadeite, fei cui, Mesoamerica, Mexico, Guatemala, Costa Rica, Mayans, Olmecs, Aztecs, archaeology, history, archaeogemology, Pre-Columbian jade; Costa Rica; Maya; exchange; iconography, lapidary

Sinkankas: Ch. 8, p. 283–311, on “Jade and other semiprecious stones,” with illustrations for the same being in the plates volume, Pls. 235–58 (not seen). Most of this text treats jade, its nature, types, and artistic significance, then describes the many objects depicted according to their artistic merits. Other gemstones are rock crystal, turquoise, obsidian, serpentine, amber, calcite onyx, and cryptocrystalline quartz varieties.