 Boundstone (rock)

A Boundstone is a special type of carbonate rock in the Dunham classification
In the original classification by Dunham(1962), boundstones are defined as "carbonate rocks showing signs of being bound during deposition [...].The signs of binding are specific and occur within the sample being classified"

In the modified Dunham classification by Embry and Clovan(1971), Boundstones in the sense of Dunham are subdivided into Bafflestones, Bindstones and Framestones.