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Definition of Wacke:
Usage examples:
-
A beautiful bust of gray- wacke in our possession probably represents the same king.
- "The Complete Historical Romances of Georg Ebers", Georg Ebers. -
The newest of these, connected with the higher series of coal- measures, is well exhibited along the shores of the Forth, in Fifeshire, where they consist of basalt with olivine, amygdaloid, greenstone, wacke, and tuff.
- "The Student's Elements of Geology", Sir Charles Lyell.