An oolitic limestone obtained from quarries at Ketton, in Rutland.
1796. Kirwan, Elem. Min. (ed. 2), I. 83. Ketton stone, whose colour is reddish brown, and consists of small rounded particles compacted together like the roe of fish.
1817. J. Bradbury, Trav. Amer., 287. That species of limestone called ketton-stone, or compact limestone of Kirwan.
1839. E. D. Clarke, Trav. Russia, 116/1. The chemical analysis of this mineral is nearly that of the Ketton-stone.
