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29 September 2017
Mineral named after UFS professor
Tredouxite (white) intergrown with bottinoite (light grey), a complex hydrous alteration product. The large host minerals are nickel-rich silicate (grey), maybe willemseite, and the spinel trevorite (dark grey).

More than five thousand minerals have been certified by the International Mineralogical Association(IMA). One of these minerals, tredouxite, was recently named after an academic at the University of the Free State (UFS). 

Tredouxite was named after Prof Marian Tredoux, an associate professor in the Department of Geology, to acknowledge her close to 30 years’ commitment to figuring out the geological history of the rock in which this mineral occurs. The name was chosen by the team which identified the new mineral, consisting of Dr Federica Zaccarini and Prof. Giorgio Garuti from the University of Leoben, Austria, Prof. Luca Bindi from the University of Florence, Italy, and Prof. Duncan Miller from the UFS. 

They found the mineral in the abovementioned rock from the Barberton region in Mpumalanga, in May 2017.

In the past, a mineral was also named after Marie Curie
With the exception of a few historical (pre-1800) names, a mineral is typically named either after the area where it was first found, or after its chemical composition or physical properties, or after a person. If named after a person, it has to be someone who had nothing to do with finding the mineral.

Prof Tredoux said: “As of 19 September 2017, 5292 minerals had been certified by IMA. Of these, 81 were named after women, either singly or with a near relation. Marie Curie is named twice: sklodowskite (herself) and curite (plus husband). Most of the named women are Russian geoscientists.”

Another way to assess the rarity of such a naming is to consider that fewer than 700 minerals have been named after people. Given that there are by now seven billion people on the planet, it means that a person who is granted a mineral name becomes one in 10 million of the people alive today to be honoured in such a way. To date, over a dozen minerals had been named after South Africans, three of them after women (including tredouxite).

It contains nickel, antimony and oxygen
The chemical composition of tredouxite is NiSb2O6 (nickel antimony oxide). This makes it the nickel equivalent of the magnesium mineral bystromite (MgSb2O6), described in the 1950s from the La Fortuna antimony mine in Mexico.  

“This announcement is of great academic importance: the discovery by the Italian team of a phase with that specific chemical composition will undoubtedly help me and my co-workers to better understand the origin of the rock itself,” she said. She also expressed the hope that it may raise interest in the Department of Geology and the UFS as a whole, by highlighting that world-class research is being done at the department. 

The announcement of this new mineral was published on the International Mineralogical Association Commission on New Minerals, Nomenclature and Classificationwebsite, the Mineralogical Magazine and the European Journal of Mineralogy.

News Archive

Seasoned international pianist appointed at the OSM
2016-02-05

Description: Dr Grethe Nöthling Tags: Dr Grethe Nöthling

Dr Grethe Nöthling

The Odeion School of Music is delighted to welcome Dr Grethe Nöthling as a new member of its dynamic performance faculty.

Dr Nöthling has been appointed as principal piano lecturer. She has won several national music competitions, and is the recipient of numerous awards and bursaries, including the University of South Africa overseas scholarship for teachers in 2003.

Musician and pedagogue par excellence

From 1989 to 2005, Dr Nöthling performed as soloist with all major South African Symphony Orchestras. She obtained a Bachelor of Music Degree (magna summa cum laude), specialising in Performance from the University of Pretoria under the tutelage of Professors Ella Fourie and Joseph Stanford.

She furthered her studies in the United States of America at the Cleveland Institute of Music where she received a Master’s of Music Degree in 2008 under the guidance of Daniel Shapiro and Paul Schenly.

Dr Nöthling obtained a Doctorate of Musical Arts Degree (2014) from the University of Iowa (UI) in the USA under Professor Uriel Tsachor. During her studies at the U of I, she was awarded a teaching assistantship, and performed with the university’s New Music Ensemble. During a ten-year residency in the USA, she has performed extensively as both soloist and chamber musician.

Inspiration for aspiring musicians

“It is my hope to be an inspiration for young and upcoming musicians both as pedagogue and performing artist. In order to consider the unique gifts and challenges of every individual student, I am of the opinion that is imperative to be very flexible and adjustable from a methodological and musical perspective,” said Dr Nöthling.

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