Webster’s Revised Unabridged Dictionary · 1913
Wacke
Wack′e, Wack′y, n. [G. wacke, MHG. wacke a large stone, OHG. waggo a pebble.] (Geol.) A soft, earthy, dark-colored rock or clay derived from the alteration of basalt.
Webster’s Revised Unabridged Dictionary · 1913
Wack′e, Wack′y, n. [G. wacke, MHG. wacke a large stone, OHG. waggo a pebble.] (Geol.) A soft, earthy, dark-colored rock or clay derived from the alteration of basalt.