Bruno Knochenhauer was a geologist and mining engineer to the Prussian government who published a substantial paper on gold mining in California, United States, in the Berg- und Huettenmaennische Zeitung in 1887. He visited South Africa around 1890 to investigate its gold and diamond fields. The visit resulted in a substantial report, Die Goldfelder in Transvaal mit besonderer Beruecksichtigung der De Kaap Goldfelder (Berlin, 1890), which dealt with gold mining, the mineral resources and economic conditions in the South African Republic (Transvaal), with special attention to the discovery and profitability of the De Kaap gold-fields in present Mpumalanga. His visit to the diamond fields in the Kimberley area led to an article, "Die Diamant-Gruben von Kimberley in S.A.", in the Zeitschrift fuer Bergwesen (Berlin) in 1891. That same year he published a comprehensive account of legislation relating to mining, precious metals and gems, and the so-called gold-law, in the Zeitschrift fuer Bergrecht (Berlin).
In 1901 Knochenhauer produced a report on Korea for the Deutsche Kolonial Gesellschaft, and later in his career a book, Die oberschlesische Montanindustrie (1927), on the mineral industry of Silesia (a province of Prussia to 1919, then divided between Poland and Czechoslovakia).