a. Of or pertaining to A. G. Werner, The German mineralogist and geologist, who classified minerals according to their external characters, and advocated the theory that the strata of the earth's crust were formed by depositions from water; designating, or according to, Werner's system. [ 1913 Webster ]
n. [ See Wernerian. ] (Min.) The common grayish or white variety of soapolite. [ 1913 Webster ]