n. [ F. argile, L. argilla white clay, akin to Gr. &unr_; or &unr_; argil, &unr_; white. See Argent. ] (Min.) Clay, or potter's earth; sometimes pure clay, or alumina. See Clay. [ 1913 Webster ]
a. [ L. argillaceus, fr. argilla. ] Of the nature of clay; consisting of, or containing, argil or clay; clayey. [ 1913 Webster ]
Argillaceous sandstone (Geol.),
Argillaceous iron ore,
Argillaceous schist or
state
a. [ L. argilla white clay + -ferous. ] Producing clay; -- applied to such earths as abound with argil. Kirwan. [ 1913 Webster ]
n. [ Gr. &unr_; clay + -lite. ] (Min.) Argillaceous schist or slate; clay slate. Its colors is bluish or blackish gray, sometimes greenish gray, brownish red, etc. --
a. Consisting of, or containing, clay and sand, as a soil. [ 1913 Webster ]
a. Consisting of, or containing, clay and calcareous earth. [ 1913 Webster ]
a. Containing clay and iron. [ 1913 Webster ]
a. [ L. argillosus, fr. argilla. See Argil. ] Argillaceous; clayey. Sir T. Browne. [ 1913 Webster ]