slickensides
Slick"en*sides`, n. 1. The smooth, striated, or partially polished surfaces of a fissure or seam, supposed to have been produced by the sliding of one surface on another. 2. A variety of galena found in Derbyshire, England.
Slick"en*sides`, n. 1. The smooth, striated, or partially polished surfaces of a fissure or seam, supposed to have been produced by the sliding of one surface on another. 2. A variety of galena found in Derbyshire, England.