释义 |
ˈketton-stone An oolitic limestone obtained from quarries at Ketton, in Rutland.
1796Kirwan 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. 1817J. Bradbury Trav. Amer. 287 That species of limestone called ketton-stone, or compact limestone of Kirwan. 1839E. D. Clarke Trav. Russia 116/1 The chemical analysis of this mineral is nearly that of the Ketton-stone. |