Drop-shaped pendant of pumice with squared sides and hour-glass perforation at one end, from Stanydale, Shetland

Pendant of pumice, from Unival chambered cairn, North Uist, Western Isles

Piece of utilised pumice, from Quoyness chambered cairn, Elsness, Sanday, Orkney

Pendant or polisher of pumice, from a cist, Golspie, Highland

Fragment of pumice stone from Galson, Barvas, Lewis

Small lump of dark grey pumice stone, part of a Viking grave assemblage from Balnakeil, Durness, Sutherland