Obsidian amulet in the form of the ib-heart: Ancient Egyptian, Late Period, c.664-332 BC

Obsidian kohl-pot, with the remains of textile wrapping below the neck : Ancient Egyptian, Upper Egypt, Thebes, Qurna, 2nd Intermediate Period, 17th Dynasty, c.1585-1545 BC

Obsidian kohl-pot lid with a round central boss on the underside: Ancient Egyptian, Upper Egypt, Thebes, Qurna, 2nd Intermediate Period, 17th Dynasty, c.1585-1545 BC

One from a group of implements of greenstone, flint and obsidian, comprising hatchets, rubber, scrapers, spearheads and arrow-points: Japan, Hokkaido, Hakodate and Firubiru, prehistoric

Piece of obsidian, possibly used as a tool: Japan, Musashi province, Mitsusawa shell-mound,

Arrowhead of obsidian: Japan, Musashi province, Mitsusawa shell-mound, Stone Age

Arrowhead of obsidian: Japan, Musashi province, Mitsusawa shell-mound, Stone Age

Arrowhead of obsidian: Japan, Musashi province, Mitsusawa shell-mound, Stone Age

Arrowhead of obsidian: Japan, Musashi province, Mitsusawa shell-mound, Stone Age

Arrowhead of obsidian: Japan, Musashi province, Mitsusawa shell-mound, Stone Age

Arrowhead of obsidian: Japan, Musashi province, Mitsusawa shell-mound, Stone Age

Arrowhead of obsidian: Japan, Musashi province, Mitsusawa shell-mound, Stone Age

Arrowhead of obsidian: Japan, Musashi province, Mitsusawa shell-mound, Stone Age

Drill for working turquoise, with shaft and cross-piece of pale wood, point of obsidian lashed on with thong, and whorl of painted pottery: North America, USA, New Mexico, Pueblo of Cochiti

Spearhead or mataa nutakuku of obsidian chipped into a leaf shape with stem: Polynesian, Rapa Nui (Easter Island)

Spearhead (mataa rei pure-pure rova) of obsidian chipped into a half-disc shape with tang: Oceania, Polynesia, Rapa Nui (Easter Island), 19th century