"Christian Samuel Weiss (February 26, 1780 \u2013 October 1, 1856) was a German mineralogist born in Leipzig. Following graduation, he worked as a physics instructor in Leipzig from 1803 until 1808. and in the meantime, conducted geological studies of mountain formations in Tyrol, Switzerland and France (1806\u201308). In 1810 he became a professor of mineralogy at the University of Berlin, where in 1818/19 and 1832/33, he served as university rector."@en . . "1780-02-26Z"^^ . . "German mineralogist" . "1856-10-01Z"^^ . "1780Z"^^ . "Weiss, Christian Samuel"@en . . "1856Z"^^ .