Johannes Otto Conrad Mügge (4 March 1858,

Hannover Hanover ( ; ; ) is the capital and largest city of the States of Germany, German state of Lower Saxony. Its population of 535,932 (2021) makes it the List of cities in Germany by population, 13th-largest city in Germany as well as the fourth-l ...

– 9 June 1932,

Göttingen Göttingen (, ; ; ) 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. According to the 2022 German census, 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 mineralogy, optical) properties of minerals and mineralized artifact (archaeology), artifacts. Specific s ...

and

crystallographer A crystallographer is a type of scientist who practices crystallography, in other words, who studies crystals. Career paths The work of crystallographers spans several academic disciplines, including the life sciences, chemistry, physics, and m ...

. From 1875 to 1879 he studied

mathematics Mathematics is a field of study that discovers and organizes methods, Mathematical theory, theories and theorems that are developed and Mathematical proof, proved for the needs of empirical sciences and mathematics itself. There are many ar ...

and sciences at the Technical University of Hannover and at the

University of Göttingen The University of Göttingen, officially the Georg August University of Göttingen (, commonly referred to as Georgia Augusta), is a Public university, public research university in the city of Göttingen, Lower Saxony, Germany. Founded in 1734 ...

. 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-geologis ...

at the mineralogical-geological institute of the

University of Heidelberg Heidelberg University, officially the Ruprecht Karl University of Heidelberg (; ), is a public university, public research university in Heidelberg, Baden-Württemberg, Germany. Founded in 1386 on instruction of Pope Urban VI, Heidelberg is List ...

. From 1882 he worked as curator of the mineralogical and

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

department at the Natural History Museum in

Hamburg Hamburg (, ; ), officially the Free and Hanseatic City of Hamburg,. is the List of cities in Germany by population, second-largest city in Germany after Berlin and List of cities in the European Union by population within city limits, 7th-lar ...

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

Münster Münster (; ) is an independent city#Germany, 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 ...

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

University of Königsberg The University of Königsberg () was the university of Königsberg in Duchy of Prussia, which was a fief of Poland. It was founded in 1544 as the world's second Protestant Reformation, Protestant academy (after the University of Marburg) by Duke A ...

, 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 The Bennett Islands are a group of islands at the southwest side of Liard Island in Hanusse Bay, extending in a southwest direction for off the west coast of Graham Land. The islands were sighted and sketched from the air in February 1937 by ...

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 (also known as the Antarctic Ocean), it contains the geographic South Pole. ...

, 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 semantics, 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 English la ...

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 Atom, atoms are linked in a continuous framework of SiO4 silicon–oxygen Tetrahedral molecular geometry, tetrahedra, with each oxygen being shared between two tet ...

and

plagioclase Plagioclase ( ) is a series of Silicate minerals#Tectosilicates, tectosilicate (framework silicate) minerals within the feldspar group. Rather than referring to a particular mineral with a specific chemical composition, plagioclase is a continu ...

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 m ...

es with radioactive radiation 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 clas ...

of selected rock complexes in

Westphalia Westphalia (; ; ) 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 region is almost identical with the h ...

Hesse Hesse or Hessen ( ), officially the State of Hesse (), is a States of Germany, state in Germany. Its capital city is Wiesbaden, and the largest urban area is Frankfurt, which is also the country's principal financial centre. Two other major hist ...

and the

Harz The Harz (), also called the Harz Mountains, 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'' der ...

. 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 Some chemical authorities define an organic compound as a chemical compound that contains a carbon–hydrogen or carbon–carbon bond; others consider an organic compound to be any chemical compound that contains carbon. For example, carbon-co ...

. * ''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 Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north a ...

porphyries" 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 is an ice sheet which forms the second largest body of ice in the world. It is an average of thick and over thick at its maximum. It is almost long in a north–south direction, with a maximum width of at a latitude ...

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 crysta ...

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 ...

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 Mohs scale, hardness of 3.5 to 4 ...

with

cobaltite Cobaltite is an arsenide and sulfide mineral with the mineral formula Co As S. It is the naming mineral of the cobaltite group of minerals, whose members structurally resemble pyrite (FeS2). History Cobaltite was first described in 1797 by K ...

. * ''Krystallographie'', 1905 (with Theodor Liebisch 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 German crystallographers German mineralogists