'Bituminous shale' definitions:

Definition of 'Bituminous shale'

From: GCIDE
  • Shale \Shale\, n. [AS. scealy, scalu. See Scalme, and cf. Shell.]
  • 1. A shell or husk; a cod or pod. "The green shales of a bean." --Chapman. [1913 Webster]
  • 2. [G. shale.] (Geol.) A fine-grained sedimentary rock of a thin, laminated, and often friable, structure. [1913 Webster]
  • Bituminous shale. See under Bituminous. [1913 Webster]

Definition of 'Bituminous shale'

From: GCIDE
  • Bituminous \Bi*tu"mi*nous\, a. [L. bituminosus: cf. F. bitumineux.] Having the qualities of bitumen; compounded with bitumen; containing bitumen. [1913 Webster]
  • Near that bituminous lake where Sodom flamed. --Milton. [1913 Webster]
  • Bituminous coal, a kind of coal which yields, when heated, a considerable amount of volatile bituminous matter. It burns with a yellow smoky flame.
  • Bituminous limestone, a mineral of a brown or black color, emitting an unpleasant smell when rubbed. That of Dalmatia is so charged with bitumen that it may be cut like soap.
  • Bituminous shale, an argillaceous shale impregnated with bitumen, often accompanying coal. [1913 Webster]