Their calcareous waters deposit a sintery incrustation on surrounding objects. The mineral formed as an incrustation of other minerals by weathering. A variation of a carved cameo is a cameo incrustation (or sulphide). The mid 19th century saw the transition from incrustation to painting of Distaff. The pottery is often decorated with paintings, tin bands or white incrustation. Arts like carpet-making, hand-weaving, metal manufacture, embossing and incrustation are highly developed. Initially Gorodets craftsmen used the incrustation technique to ornament the distaffs.