Johannes Otto Conrad Mügge (4 March 1858,

Hannover Hanover (; german: Hannover ; nds, Hannober) is the capital and largest city of the German States of Germany, state of Lower Saxony. Its 535,932 (2021) inhabitants make it the List of cities in Germany by population, 13th-largest city in Germa ...

– 9 June 1932,

Göttingen Göttingen (, , ; nds, Chöttingen) is a college town, university city in Lower Saxony, central Germany, the Capital (political), capital of Göttingen (district), the eponymous district. The River Leine runs through it. At the end of 2019, t ...

) was a German

mineralogist Mineralogy is a subject of geology specializing in the scientific study of the chemistry, crystal structure, and physical (including optical) properties of minerals and mineralized artifacts. Specific studies within mineralogy include the proces ...

and crystallographer. From 1875 to 1879 he studied

mathematics Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes. These topics are represented in modern mathematics ...

and sciences at the

Technical University of Hannover Gottfried Wilhelm Leibniz University Hannover (german: Gottfried Wilhelm Leibniz Universität), also known as the University of Hannover, is a public research university located in Hanover, Germany. Founded on 2 May 1831 as Higher Vocational Sc ...

and at the

University of Göttingen The University of Göttingen, officially the Georg August University of Göttingen, (german: Georg-August-Universität Göttingen, known informally as Georgia Augusta) is a public research university in the city of Göttingen, Germany. Founded ...

. After graduation, he spent three years as an assistant to

Harry Rosenbusch (Karl) Heinrich/Harry (Ferdinand) Rosenbusch (24 June 1836 – 20 January 1914) was a German petrographer. Harry Rosenbusch was born in Einbeck. He taught at Heidelberg University (1877–1908), where he founded the ''Mineralogisches-geologische ...

at the mineralogical-geological institute of the

University of Heidelberg } Heidelberg University, officially the Ruprecht Karl University of Heidelberg, (german: Ruprecht-Karls-Universität Heidelberg; la, Universitas Ruperto Carola Heidelbergensis) is a public research university in Heidelberg, Baden-Württemberg, ...

. From 1882 he worked as curator of the mineralogical and

geological Geology () is a branch of natural science concerned with Earth and other astronomical objects, the features or rocks of which it is composed, and the processes by which they change over time. Modern geology significantly overlaps all other Eart ...

department at the Natural History Museum in

Hamburg (male), (female) en, Hamburger(s), Hamburgian(s) , timezone1 = Central (CET) , utc_offset1 = +1 , timezone1_DST = Central (CEST) , utc_offset1_DST = +2 , postal ...

, and in 1886 became an associate professor at the academy in

Münster Münster (; nds, Mönster) is an independent city (''Kreisfreie Stadt'') in North Rhine-Westphalia, Germany. It is in the northern part of the state and is considered to be the cultural centre of the Westphalia region. It is also a state distr ...

. Later on, he served as a full professor at the

University of Königsberg The University of Königsberg (german: Albertus-Universität Königsberg) was the university of Königsberg in East Prussia. It was founded in 1544 as the world's second Protestant academy (after the University of Marburg) by Duke Albert of Prussi ...

, where in 1903/04 he was named dean to the faculty of philosophy. In 1908 he relocated as a professor to the University of Göttingen.Mügge, Otto
Deutsche Biographie Mügge Island, one of the Bennett Islands off the coast of

Antarctica Antarctica () is Earth's southernmost and least-populated continent. Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean, it contains the geographic South Pole. Antarctica is the fifth-largest contine ...

, commemorates his name.

Published works

He was the author of 152 scientific works; dealing with subjects such as, the

translation Translation is the communication of the Meaning (linguistic), meaning of a #Source and target languages, source-language text by means of an Dynamic and formal equivalence, equivalent #Source and target languages, target-language text. The ...

of crystals by mechanical deformation, the regular adhesion of different types of minerals, the formation temperature of

quartz Quartz is a hard, crystalline mineral composed of silica (silicon dioxide). The atoms are linked in a continuous framework of SiO4 silicon-oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical form ...

and

plagioclase Plagioclase is a series of tectosilicate (framework silicate) minerals within the feldspar group. Rather than referring to a particular mineral with a specific chemical composition, plagioclase is a continuous solid solution series, more prope ...

twinning, the correlation of

pleochroic halo A pleochroic halo, or radiohalo, is a microscopic, spherical shell of discolouration (pleochroism) within minerals such as biotite that occurs in granite and other igneous rocks. The halo is a zone of radiation damage caused by the inclusion of mi ...

es with

radioactive radiation In physics, radiation is the emission or transmission of energy in the form of waves or particles through space or through a material medium. This includes: * ''electromagnetic radiation'', such as radio waves, microwaves, infrared, visib ...

and the

petrography Petrography is a branch of petrology that focuses on detailed descriptions of rocks. Someone who studies petrography is called a petrographer. The mineral content and the textural relationships within the rock are described in detail. The classi ...

of selected rock complexes in

Westphalia Westphalia (; german: Westfalen ; nds, Westfalen ) is a region of northwestern Germany and one of the three historic parts of the state of North Rhine-Westphalia. It has an area of and 7.9 million inhabitants. The territory of the regio ...

Hesse Hesse (, , ) or Hessia (, ; german: Hessen ), officially the State of Hessen (german: links=no, Land Hessen), is a States of Germany, state in Germany. Its capital city is Wiesbaden, and the largest urban area is Frankfurt. Two other major histor ...

and the

Harz The Harz () is a highland area in northern Germany. It has the highest elevations for that region, and its rugged terrain extends across parts of Lower Saxony, Saxony-Anhalt, and Thuringia. The name ''Harz'' derives from the Middle High German ...

. With

Ernst Anton Wülfing Ernst Anton Wülfing (27 November 1860, Elberfeld – 17 December 1930, Bad Wörishofen) was a German mineralogist and petrographer, known for his research on the optical properties of minerals and meteorites. He studied chemistry at Geneva and at ...

, he published the fifth edition of

's ''Mikroskopische Physiographie der Mineralien und Gesteine'' (1921–27). Other noted works by Mügge include: * ''Krystallographische Untersuchung einiger organischen Verbindungen'', 1879 – Crystallographic study of some

organic compounds In chemistry, organic compounds are generally any chemical compounds that contain carbon-hydrogen or carbon-carbon bonds. Due to carbon's ability to catenate (form chains with other carbon atoms), millions of organic compounds are known. The s ...

. * ''Untersuchungen über die "Lenneporphyre" in Westfalen und den angrenzenden Gebieten'', 1893 – Studies on the "

Lenne The Lenne is a tributary of the river Ruhr in the Sauerland hills, western Germany. It has caused flooding in recent years. Having its source on top of the ''Kahler Asten'' near Winterberg in an intermittent spring at an elevation of , the Le ...

porphyries Porphyry ( ) is a textural term for an igneous rock consisting of coarse-grained crystals such as feldspar or quartz dispersed in a fine-grained silicate-rich, generally aphanitic matrix or groundmass. The larger crystals are called phenocr ...

" in

and adjacent areas. * ''Über Translationen und verwandte Erscheinungen in Kristallen'', Neues Jb. Miner. Geol. u. Palaont., J_, 71-159, 1898 – On

and related phenomena in crystals. * ''Ueber die Structur des grönländischen Inlandeises und ihre Bedeutung für die Theorie der Gletscherbewegung'', 1899 – Concerning the structure of the

Greenland ice sheet The Greenland ice sheet ( da, Grønlands indlandsis, kl, Sermersuaq) is a vast body of ice covering , roughly near 80% of the surface of Greenland. It is sometimes referred to as an ice cap, or under the term ''inland ice'', or its Danish equiva ...

and its importance for the theory of glacier movement. * ''Über regelmässige Verwachsungen von Bleiglanz mit Eisenkies und Kupferkies mit Kobaltglanz'', Min. Petr. Mitt., Wien, 20, 1901, (349- 354) – On regular adhesions of

galena Galena, also called lead glance, is the natural mineral form of lead(II) sulfide (PbS). It is the most important ore of lead and an important source of silver. Galena is one of the most abundant and widely distributed sulfide minerals. It cryst ...

with

iron pyrite The mineral pyrite (), or iron pyrite, also known as fool's gold, is an iron sulfide with the chemical formula Fe S2 (iron (II) disulfide). Pyrite is the most abundant sulfide mineral. Pyrite's metallic luster and pale brass-yellow hue giv ...

s and

chalcopyrite Chalcopyrite ( ) is a copper iron sulfide mineral and the most abundant copper ore mineral. It has the chemical formula CuFeS2 and crystallizes in the tetragonal system. It has a brassy to golden yellow color and a hardness of 3.5 to 4 on the Mo ...

with

cobaltite Cobaltite is a sulfide mineral composed of cobalt, arsenic, and sulfur, Co As S. Its impurities may contain up to 10% iron and variable amounts of nickel.Klein, Cornelus and Cornrlius Hurlbut, 1996, ''Manual of Mineralogy'', 20th ed., Wiley, p.2 ...

. * ''Krystallographie'', 1905 (with

Theodor Liebisch Theodor Liebisch (29 April 1852, Breslau – 9 February 1922, Berlin) was a German mineralogist and crystallographer. Biography In 1874 he received his doctorate from the University of Breslau, then worked as an assistant to Gerhard vom Ra ...

and

Arthur Moritz Schoenflies Arthur Moritz Schoenflies (; 17 April 1853 – 27 May 1928), sometimes written as Schönflies, was a German mathematician, known for his contributions to the application of group theory to crystallography, and for work in topology. Schoenflies ...

).Most widely held works about Otto Mügge
WorldCat Identities

References

{{DEFAULTSORT:Mugge, Otto 1858 births 1932 deaths Scientists from Hanover Academic staff of the University of Königsberg Academic staff of the University of Göttingen Crystallographers German mineralogists