Ernst Weinschenk

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Ernst Weinschenk
1909-WeinschenErnst.jpg
University of Munich, 1909
Scientific career
Fields Mineralogy, Petrography

Ernst Heinrich Oskar Kasimir Weinschenk (6 April 1865, Esslingen am Neckar – 26 March 1921, Munich) was a German mineralogist and petrologist.

Esslingen am Neckar Place in Baden-Württemberg, Germany

Esslingen am Neckar is a city in the Stuttgart Region of Baden-Württemberg in southern Germany, seat of the District of Esslingen as well as the largest city in the district.

Munich Place in Bavaria, Germany

Munich is the capital and most populous city of Bavaria, the second most populous German federal state. With a population of around 1.5 million, it is the third-largest city in Germany, after Berlin and Hamburg, as well as the 12th-largest city in the European Union. The city's metropolitan region is home to 6 million people. Straddling the banks of the River Isar north of the Bavarian Alps, it is the seat of the Bavarian administrative region of Upper Bavaria, while being the most densely populated municipality in Germany. Munich is the second-largest city in the Bavarian dialect area, after the Austrian capital of Vienna.

He served as a professor at the "Technische Hochschule" in Munich (1897–1921) and at the University of Munich (from 1900). His scientific research included mineralogical analysis of meteorites, and studies of contact-metamorphic mineralization in the Alpine region of central Europe. He also conducted investigations on the origin of the sulfidic ore deposit at Silberberg in the Bavarian Forest, as well as the genesis of graphite deposits near Passau. Through the use of polarizing microscopy and thin sectioning, he determined numerous new minerals. [1]

Metamorphic rock Rock which was subjected to heat and pressure causing profound physical or chemical change

Metamorphic rocks arise from the transformation of existing rock types, in a process called metamorphism, which means "change in form". The original rock (protolith) is subjected to heat and pressure, causing profound physical or chemical change. The protolith may be a sedimentary, igneous, or existing metamorphic rock.

Sulfide salt or other derivative of hydrogen sulfide or organic compound having the structure RSR (R ≠ H)

Sulfide (British English sulphide) is an inorganic anion of sulfur with the chemical formula S2− or a compound containing one or more S2− ions. Solutions of sulfide salts are corrosive. Sulfide also refers to chemical compounds large families of inorganic and organic compounds, e.g. lead sulfide and dimethyl sulfide. Hydrogen sulfide (H2S) and bisulfide (SH-) are the conjugate acids of sulfide.

Silberberg (Bodenmais) mountain in Germany

Silberberg is a mountain of Bavarian Forest, Bavaria, Germany.

Written works

Weinschenk's Grundzüge der Gesteinskunde was translated into English in 1916 by Albert Johannsen as "The fundamental principles of petrology". With mineralogist Konrad Oebbeke (1853–1932), he published editions 6 (1899) & 7 (1913) of Wolfgang Franz von Kobell's Lehrbuch Der Mineralogie : in leichtfasslicher Darstellung. Other works by Weinschenk include:

Konrad Oebbeke was a German geologist and mineralogist.

Wolfgang Franz von Kobell German mineralogist and writer

Wolfgang Xavier Franz Ritter von Kobell was a German mineralogist and writer of short stories and poems in Bavarian dialect.

Geology The study of the composition, structure, physical properties, and history of Earths components, and the processes by which they are shaped.

Geology is an earth science concerned with the solid Earth, the rocks of which it is composed, and the processes by which they change over time. Geology can also include the study of the solid features of any terrestrial planet or natural satellite such as Mars or the Moon. Modern geology significantly overlaps all other earth sciences, including hydrology and the atmospheric sciences, and so is treated as one major aspect of integrated earth system science and planetary science.

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 classification of rocks is based on the information acquired during the petrographic analysis. Petrographic descriptions start with the field notes at the outcrop and include macroscopic description of hand specimens. However, the most important tool for the petrographer is the petrographic microscope. The detailed analysis of minerals by optical mineralogy in thin section and the micro-texture and structure are critical to understanding the origin of the rock. Electron microprobe analysis of individual grains as well as whole rock chemical analysis by atomic absorption, X-ray fluorescence, and laser-induced breakdown spectroscopy are used in a modern petrographic lab. Individual mineral grains from a rock sample may also be analyzed by X-ray diffraction when optical means are insufficient. Analysis of microscopic fluid inclusions within mineral grains with a heating stage on a petrographic microscope provides clues to the temperature and pressure conditions existent during the mineral formation.

Handbook type of reference work, or other collection of instructions, that is intended to provide ready reference

A handbook is a type of reference work, or other collection of instructions, that is intended to provide ready reference. The term originally applied to a small or portable book containing information useful for its owner, but the Oxford English Dictionary defines the current sense as "any book...giving information such as facts on a particular subject, guidance in some art or occupation, instructions for operating a machine, or information for tourists."

The mineral weinschenkite, also known as "churchite-(Y)", is named after him. [3] [4]

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Uvarovite garnet, nesosilicate mineral

Uvarovite is a chromium-bearing garnet group species with the formula: Ca3Cr2(SiO4)3. It was discovered in 1832 by Germain Henri Hess who named it after Count Sergei Semenovitch Uvarov (1765–1855), a Russian statesman and amateur mineral collector. It is classified in the ugrandite group alongside the other calcium-bearing garnets andradite and grossular.

Justus Ludwig Adolf Roth was a German geologist and mineralogist.

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Mineralogical Society of America organization

The Mineralogical Society of America (MSA) is a scientific membership organization. MSA was founded in 1919 for the advancement of mineralogy, crystallography, geochemistry, and petrology, and promotion of their uses in other sciences, industry, and the arts. It encourages fundamental research about natural materials; supports the teaching of mineralogical concepts and procedures to students of mineralogy and related arts and sciences; and attempts to raise the scientific literacy of society with respect to issues involving mineralogy. The Society encourages the general preservation of mineral collections, displays, mineral localities, type minerals and scientific data. MSA represents the United States with regard to the science of mineralogy in any international context. The Society was incorporated in 1937 and approved as a nonprofit organization in 1959.

Karl Ludwig Felix Machatschki was an Austrian mineralogist.

Gustav Rose mineralogist


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Stuart Olof Agrell was an outstanding optical mineralogist and pioneer collaborator applying the electron microprobe to petrology. His involvement in the Apollo program brought him to the attention of the British media and public.

American Mineralogist: An International Journal of Earth and Planetary Materials is a peer-reviewed scientific journal covering the general fields of mineralogy, crystallography, geochemistry, and petrology. It is an official journal of the Mineralogical Society of America. The editors-in-chief are Keith Putirka, and Ian Swainson.

Braggite is a sulfide mineral of platinum, palladium and nickel with chemical formula: S. It is a dense, steel grey, opaque mineral which crystallizes in the tetragonal crystal system. It is the central member in the platinum group end-members cooperite and vysotskite.

Stefan Richarz was a German priest, missionary and geologist.

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Friedrich Rinne crystallographer and petrographer, University of Kiel, Germany

Friedrich Wilhelm Berthold Rinne was a German mineralogist, crystallographer and petrographer.

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References

  1. ↑ The Smithsonian/NASA Astrophysics Data System Ernst Weinschenk (1865-1921) a pioneer of microscopy and petrography in Munich
  2. ↑ WorldCat Identities (publications)
  3. ↑ Mindat.org Weinschenkite (of Laubmann)
  4. ↑ Webmineral.com Churchite-(Y) Mineral Data
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