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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

UFS extends footprint abroad
2015-12-14

In its constant pursuit of research excellence, the UFS has this year performed well in mainly two areas.

Apart from the research done by the UFS on national level, e.g. the involvement of its researchers with the SKA telescope, the pioneering work they do with the satellite tracking of giraffes, as well as research on trauma, forgiveness and reconciliation – to name but a few of the research areas, the university also has a research focus abroad.

Japan, Europe, America and Botswana. These are just some of the places where academics from the university are involved in research abroad.

Japan

Dr Dirk Opperman, Senior Lecturer at the Department of Microbial, Biochemical and Food Biotechnology, and Carmien Tolmie, a PhD student in the same department, visited the Okinawa Institute of Science and Technology in Onna, Japan, during November and December 2014. During the visit, experiments were performed in the Microbiology and Biochemistry of Secondary Metabolite Unit of Dr Holger Jenke-Kodama.

This formed part of a larger NRF-funded project on carcinogenic toxins produced in certain Aspergillus fungi. These fungi infect food and feedstuff and are a big concern in developing countries because it may lead to severe economic losses. The research ultimately aims to find inhibitors to block the production of these fungal toxins.



Europe and America

In 2012, an international network was established in the frame of the FP7-PEOPLE-2011-IRSES programme, called hERG-related risk assessment of botanicals (hERGscreen). The South African group included Dr Susan Bonnet and Dr Anke Wilhelm, both from the UFS Department of Chemistry.

Extracts from more than 450 South African plant species have been investigated systematically to assess the potential cardiotoxic risk of commonly consumed botanicals and supplements. The idea of the project, funded by the European Commission, is to identify safety liabilities of botanicals.

Other international partners included the University of Innsbruck, National and Kapodistrian University of Athens, Biomedical Research Foundation of the Academy of Athens, University of Basel, University of Vienna, University of Florida, Universidade Federal do Rio Grande do Sul, Universidade Federal de Santa Catarina.

Botswana

A memorandum of understanding was signed between the UFS and Botho University in Botswana in September 2015, which will be valid for three years.

The agreement, includes student and staff exchange programmes, collaborative research, teaching and learning and community engagement activities, sharing of results, and PhD/ MPhil guidance.

Young researchers

Another research focus of the UFS is the development of its young researchers. In 2015, the UFS has delivered 13 Y-rated researchers. Ten of the researchers are from the Faculty of Natural and Agricultural Sciences and three from the Faculty of the Humanities. Three of them received an Y1 rating from the NRF.

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