Macehead of micaceous schist, from Ireland

Rotary quern stone of micaceous schist, probably unfinished, with a lentoid profile, one face is irregular, with little sign of working apart from some flaking around the edges to thin it to the desired thickness, the upper surface is pecked into a low domed profile with a conical feeder pipe which flares onto the upper and lower surfaces, from Benbecula, Inverness-shire, c. 1800 - 1810

Whetstone of micaceous schist with one end partly perforated, from Meiklerigg Farm, Stenton, East Lothian, Early Bronze Age

Slab of micaceous schist with five cup marks, from Tirinie, Glen Lyon, Perthshire

Flake of miccaceous schist, smoothed: Japan, Musashi province, Sugita shell-mound, prehistoric