wacke

How to use wacke in a sentence

• Smoke-grey micaceous slaty-clay, much like certain beds of the old red sandstone, where it graduates into grey wacke.

  Narrative of a Survey of the Intertropical and Western Coasts of Australia] [Volume 2 of 2] | Phillip Parker King

• wacke, wak′e, n. German miners' term for a soft, grayish kind of trap-rock.

  Chambers's Twentieth Century Dictionary (part 4 of 4: S-Z and supplements) | Various

• These banks rise in some instances to hills of firm rock, generally wacke.

  The Highlands of Ethiopia | William Cornwallis Harris

• The material of the rock here is wacke, in which there are many flints.

  Travels Through North America, v. 1-2 | Berhard Saxe-Weimar Eisenach

• Wackelfiguren means figures made of wacke, a greenish-gray mineral, soft and easily broken.

  The Atlantic Monthly, Volume 16, No. 96, October 1865 | Various