Bruno Geier (mineralogist)

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Bruno Hermann Geier (born February 8, 1902 in Pforzheim ; † November 30, 1987 ) was a German mining engineer and mineralogist .

Life

Bruno Hermann Geier, born on February 8, 1902 in Pforzheim in Baden, devoted himself to six months of practical work in various mining companies after graduating from high school on July 15, 1920 . In April 1921 he began studying mining at the Bergakademie zu Clausthal in the Harz Mountains, where he studied for five semesters and in April 1923 passed the pre-graduate diploma. Geier spent the semesters up to the end of his studies at the mining department of the Technical University of Berlin, where he passed the main diploma examination on July 15, 1926.

The newly qualified engineer began with Erich Harbort at the Institute for Deposit Research at the Technical University of Berlin with the investigation of ores from Corocoro in Bolivia , which the secret mountain professor Robert Scheibe had collected in the summer of 1916. Geier, who was unable to visit the deposit himself, was able to compare his investigations on the samples, which were provided with detailed and precise names, with material from the collection of the geological state institute in Freiburg im Breisgau , which was collected by Gustav Steinmann in 1903-04 consisted in Corocoro and Cobrizos. Further investigation material came from Corocoro, Yarvicoya, Cobrizos and Na-Ukat and was made available by Friedrich Schumacher , head of the geological institute of the Freiberg Bergakademie in Saxony . In 1927 Geier received his doctorate in engineering from Erich Harbort with a thesis on "Contributions to the question of the formation of the Bolivian copper ore deposits of the Corocoro type" .

As a result, Geier took on a position as chief engineer of the “Sociedad Estañifera Morococola” in Bolivia . At the end of the 1920s, he published an extensive geological and mineral-scientific work on the stick-shaped "tin ore deposit Morococala-Bolivia". At the beginning of August 1931, Geier took over on behalf of the “Comp. Restauradora del Chivato ” in Talca investigated the Chilean gold deposit “ El Chivato ”, which was discovered in 1730 . He was in the investigation of various early 1933 Black Forest involved deposits, relying in particular with the excellent by their mighty heap trains copper - bismuth -Lagerstätte Neubulach employed and "Chalkographische studies with special reference to their precious metal content" anfertigte.

However, Bruno Geier became known to a wider specialist audience as the chief mineralogist (Chief Mineralogist or Senior Mineralogist) of Tsumeb Corporation Ltd., in Tsumeb , South West Africa . He has been doing this since 1951. He remained in this position until 1972; it was taken over by John Innes. Geier mainly worked on the ore minerals in the area of ​​the second oxidation zone, whereby he could only fall back on ore microscopic and wet chemical analysis methods. Nevertheless, he has described numerous unusual ore mineral parageneses and previously unknown varieties of ore minerals. After Geier left Tsumeb Corporation in 1972, this work was discontinued.

Bruno Hermann Geier died on November 30, 1987.

Mineral first descriptions

Geier and specialist colleagues described five new minerals from the Tsumeb mine . They include:

In vulture samples and collections at the Tsumeb Mine since the 1980s, a number of other new minerals - e. B. Otjisumeit , O'Danielit , Tsumgallit and Hermannroseit - which clearly points to his flair for the discovery of unusually developed and obviously new minerals. If Geier had had the current inventory of equipment for the material investigation of minerals available, the number of minerals he discovered would be significantly greater. This is also proven by the following quote:

“In 1955, the late Bruno H. Geier, chief geologist [sic!] At Tsumeb, collected up to 5 kg pieces of a possible new germanium-bearing, iron-gray mineral. This discovery was made at a depth of 954 meters, 7 meters above the 30 level. But Geier was not able to analyze the unknown mineral completely. 10 years later, in 1965, this mineral was published as new mineral briartite from Kipushi, where it occurs as microscopic inclusions. "

“In 1955, the late Bruno H. Geier, chief geologist [sic!] In Tsumeb, found pieces weighing up to 5 kg of a possibly new iron-gray mineral containing germanium. This discovery was made at a depth of 954 meters, 7 meters above the 30th level. However, Geier was not able to fully analyze the unknown mineral. Ten years later, in 1965, this mineral was published as the new mineral briartite from Kipushi, where it occurs in microscopic inclusions. "

- Georg Gebhard : Tsumeb: a unique mineral locality

Honors and memberships

In 1972 Joachim Ottemann and Bernhard Nuber described a new mineral found in the Tsumeb Mine in Tsumeb, South West Africa (Namibia), in honor of Bruno Hermann Geier and in recognition of his "services to research into the mineral parageneses of Tsumeb" as brunogeierite .

Geier was a member of the Society for Geology Applied to Mineral Deposits .

Fonts

  • Bruno H. Geier: Contributions to the question of the formation of the Bolivian copper ore deposits of the Corocoro type (Technische Hochschule Berlin, dissertation, 1927) . In: New Yearbook f. Mineralogy, Geology and Paleontology, supplement volume . Dept. A 58, 1928, p. 1-42 .
  • Bruno H. Geier: The tin ore deposit Morococala-Bolivia . In: Journal of Practical Geology . tape 38 , no. 8 , 1930, p. 113-128 .
  • Bruno H. Geier: The tin ore deposit Morococala-Bolivia (end) . In: Journal of Practical Geology . tape 38 , no. 9 , 1930, p. 135-142 .
  • Bruno H. Geier: The “El Chivato” gold deposit near Talca (Chile) . In: Journal of Practical Geology . tape 41 , no. 4 , 1933, pp. 61-69 .
  • Bruno H. Geier: The copper bismuth ores from Neubulach in the Black Forest: Chalcographic studies with special consideration of their precious metal content . In: Journal of Practical Geology . tape 41 , no. 9 , 1933, pp. 137-152 .
  • Charles B. Sclar, Bruno H. Geier: The paragenetic relationships of germanite and reniérite from Tsumeb, South West Africa . In: Economic Geology . tape 52 , 1957, pp. 612-631 (English).
  • Hugo Strunz, Gerhard Söhnge, Bruno H. Geier: Stottite, a new germanium mineral, and its paragenesis in Tsumeb . In: New yearbook for mineralogy, monthly books . tape 1958 , 1958, pp. 85-96 .
  • Bruno H. Geier, Kurt Weber: Reinerite Zn 3 [AsO 3 ] 2 , a new mineral from the Tsumeb Mine in South West Africa . In: New yearbook for mineralogy, monthly books . tape 1958 , no. 7/8 , 1958, pp. 160-167 .
  • Hugo Strunz, Bruno H. Geier, Erich Seeliger: Gallit, CuGaS 2 , the first independent gallium mineral, and its distribution in the ores of the Tsumeb and Kipushi mines . In: New yearbook for mineralogy, monthly books . tape 1958 , 1958, pp. 241-264 .
  • Bruno H. Geier: Mineralogy in Tsumeb (Scientific research in South West Africa, Series 1) . 1st edition. Committee of the SWA Scientific Society, Windhoek 1962.
  • Bruno H. Geier, Joachim Ottemann: New primary vanadium-, germanium-, gallium-, and tin-minerals from the Pb-Zn-Cu-deposit Tsumeb, South West Africa . In: Mineralium Deposita . tape 5 , no. 1 , 1970, p. 29-40 .
  • Bruno H. Geier, Joachim Ottemann: New secondary tin-germanium and primary tungsten- (molybdenum-, vanadium-) germanium minerals from the Tsumeb ore deposit . In: New Yearbook for Mineralogy, Treatises . tape 114 , 1970, pp. 89-107 .
  • Bruno H. Geier, K. Kautz, G. Müller: Tsumcorite (e) [PbZnFe (AsO 4 ) 2 ] · H 2 O, a new mineral from the oxidation zones of the Tsumeb mine, South West Africa . In: New yearbook for mineralogy, monthly books . tape 1971 , 1971, p. 305-309 .
  • Bruno H. Geier, Joachim Ottemann: Briartite, the third germanium sulfide mineral from the Tsumeb ore deposit . In: New Yearbook for Mineralogy, Treatises . tape 118 , 1972, p. 97-109 .
  • Bruno H. Geier, Joachim Ottemann: About Betekhtinit from Tsumeb . In: New yearbook for mineralogy, monthly books . tape 1973 , no. 9 , 1973, p. 416-426 .
  • Bruno H. Geier: Mineralogical study of the lead, zinc and copper deposits Tsumeb . In: Journal SWA Scientific Society . tape 28 , 1974, p. 35-52 .

Web links

Individual evidence

  1. ↑ Bruno Geier: Contributions to the question of the formation of the Bolivian copper ore deposits of the Corocoro type (Technische Hochschule Berlin, dissertation, 1927) . In: New Yearbook f. Mineralogy, Geology and Paleontology, supplement volume . Dept. A 58, 1928, p. 1–42 (with CV attached).
  2. ↑ Bruno H. Geier: The tin ore deposit Morococala-Bolivia . In: Journal of Practical Geology . tape 38 , no. 8 , 1930, p. 113-128 .
  3. ↑ Bruno H. Geier: The gold deposit "El Chivato" near Talca (Chile) . In: Journal of Practical Geology . tape 41 , no. 4 , 1933, pp. 61-69 .
  4. ↑ Bruno H. Geier: The copper bismuth ores from Neubulach in the Black Forest: Chalcographic studies with special consideration of their precious metal content . In: Journal of Practical Geology . tape 41 , no. 9 , 1933, pp. 137-152 .
  5. ^ Paul Gerhard Söhnge: Tsumeb: a historical sketch (Scientific research in South West Africa, 5th ser.) . 1st edition. Committee of the SWA Scientific Society, Windhoek 1967, p. 1-9 .
  6. ↑ a b c Georg Gebhard: Tsumeb II. A Unique Mineral Locality . 1st edition. GG Publishing, Grossenseifen 1991, ISBN 3-925322-03-5 , pp. 270 .
  7. ^ Bruno H. Geier, Joachim Ottemann: New primary vanadium-, germanium-, gallium-, and tin-minerals from the Pb-Zn-Cu-deposit Tsumeb, South West Africa . In: Mineralium Deposita . tape 5 , no. 1 , 1970, p. 29-40 .
  8. ^ Bruno H. Geier, Joachim Ottemann: New secondary tin - germanium and primary tungsten - (molybdenum -, vanadium -) germanium minerals from the Tsumeb ore deposit . In: New Yearbook for Mineralogy, Treatises . tape 114 , 1970, pp. 89-107 .
  9. ↑ Charles B. Sclar, Bruno H. Geier: The para genetic relationships of germanite and reniérite from Tsumeb, Southwest Africa . In: Economic Geology . tape 52 , 1957, pp. 612-631 (English).
  10. ↑ Bruno H. Geier, Joachim Ottemann: Briartite, the third germanium sulfide mineral from the Tsumeb ore deposit . In: New Yearbook for Mineralogy, Treatises . tape 118 , 1972, p. 97-109 .
  11. ↑ Bruno H. Geier, Joachim Ottemann: About Betekhtinit from Tsumeb . In: New yearbook for mineralogy, monthly books . tape 1973 , no. 9 , 1973, p. 416-426 .
  12. ^ Hugo Strunz, Bruno H. Geier, Erich Seeliger: Gallit, CuGaS 2 , the first independent gallium mineral, and its distribution in the ores of the Tsumeb and Kipushi mines . In: New yearbook for mineralogy, monthly books . tape 1958 , 1958, pp. 241-264 .
  13. ↑ Hugo Strunz, Gerhard Söhnge, Bruno H. Geier: Stottite, a new germanium mineral, and its paragenesis in Tsumeb . In: New yearbook for mineralogy, monthly books . tape 1958 , 1958, pp. 85-96 .
  14. ↑ Bruno H. Geier, Kurt Weber: Reinerite Zn 3 [AsO 3 ] 2 , a new mineral from the Tsumeb mine in South West Africa . In: New yearbook for mineralogy, monthly books . tape 1958 , no. 7/8 , 1958, pp. 160-167 .
  15. ↑ Bruno H. Geier, K. Kautz, G. Müller: Tsumcorite (e) [PbZnFe (AsO 4 ) 2 ] · H 2 O, a new mineral from the oxidation zones of the Tsumeb mine, South West Africa . In: New yearbook for mineralogy, monthly books . tape 1971 , 1971, p. 305-309 .
  16. ↑ Joachim Ottemann, Bernhard Nuber, Bruno H. Geier: Schneiderhöhnit, a natural iron-arsenic oxide from the deep oxidation zone of Tsumeb . In: New yearbook for mineralogy, monthly books . tape 1973 , no. 11 , 1973, p. 517-523 .
  17. ↑ Joachim Ottemann, Bernhard Nuber: Brunogeierit, a germanium ferrite spinel from Tsumeb . In: New yearbook for mineralogy, monthly books . tape 1972 , 1972, p. 263-267 .
personal data
SURNAME Geier, Bruno
ALTERNATIVE NAMES Geier, Bruno Hermann (full name)
BRIEF DESCRIPTION German mineralogist and mining engineer
DATE OF BIRTH February 8, 1902
PLACE OF BIRTH Pforzheim
DATE OF DEATH November 30, 1987