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23 February 2022 | Story Lacea Loader

From 24 February 2022 – as an interim solution to the challenges experienced with the disruption of classes on the University of the Free State (UFS) Bloemfontein Campus during the week of 21 February 2022 – the academic programme will continue in a differentiated and flexible online mode in some modules within faculties.

Face-to-face classes will continue in those modules where online teaching is not possible at this stage. Students will be informed by their respective faculties as to which modules will be moving online, and which will remain face to face.

This is a temporary measure to enable the campus to return to stability. The arrangement is estimated to continue for two to three weeks at the most, after which the academic programme will return to the approved teaching plans for 2022.

As an additional measure and to mitigate the challenges of remote off-campus internet access, 10 GB of data is provided free of charge through Global Protect to all registered students for the next month. This will enable students to link to learning resources off campus at no cost. The use of social media is, however, not included in the 10 GB.

Enquiries regarding GlobalProtect can be directed to the ICT Services Call Centre at +27 51 401 9111 (option 4).

Computer laboratories on the campus will remain available to vaccinated students whose modules will be moving online.

Issued by:
Lacea Loader
Director: Communication and Marketing
University of the Free State
loaderl@ufs.ac.za

23 February 2022

News Archive

Mineral named after UFS professor
2017-09-29

Description: Mineral tredoux Tags: International Mineralogical Association, tredouxite, Prof Marian Tredoux, Department of Geology, Barberton 

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 Classification website, the Mineralogical Magazine and the European Journal of Mineralogy.

 

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