Heinrich Adolph Baumhauer (26 October 1848, Bonn, Kingdom of Prussia - 1 August 1926, Freiburg, Switzerland) was a German chemist and mineralogist.
[3] He studied in Bonn from 1866 to 1869 with Friedrich August Kekule von Stradonitz,[1] Hans Heinrich Landolt and Gerhard vom Rath,[4] receiving his doctorate for the dissertation “Die Reduction des Nitrobenzols durch Chlor-und Bromwasserstoff.” He spent an additional year studying at Göttingen in 1870.
After a short period of teaching at the Handelsschule in Hildesheim in 1872, he became a chemistry teacher from 1873 to 1896 at the agricultural school of Lüdinghausen, Westphalia.
[9][7] A mineral is named in his honor as well: the rare dark gray lead-arsenic-sulphide Baumhauerite (Pb 3 As 4 S 9), which is found in the Lengenbach Quarry in Binntal, Switzerland.
[10] Baumhauer's collection of minerals from the Binntal, containing more than 750 pieces as well as handwritten observation journals, correspondence, and other materials, is held by the Freiburger Institut für Mineralogie.