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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

It’s Rag Time!
2014-01-14

 

Zakes Bantwini, Mango Groove and Robbie Wessels 
Photos: Supplied

Kovsie Rag Community Service will start 2014 off with the well-known Rag festivities, with enthusiastic students already starting with float building in January. The theme for Rag CS 2014 is ‘Movies.’

As from 20 January, a cheerful atmosphere will be present at the Kovsie Rag farm, with senior and junior students working hard, while social cohesion is developing between them. Great entertainment will be part of these festivities, with the likes of DJ Euphonik and Adam performing on 31 January.
In the midst of all these activities, the annual ‘Chicken Run’ evening collections will take place on 21, 23 and 28 January, as well as the Ritsim sales in Bloemfontein and surrounding areas on 24-25 January.

The hard work will reach its peak with the judging of the floats on the morning of 1 February, after which the floats will depart at 09:00 for the first procession of the day. This route will end at Twin City Mall at 11:00, where 10 000 meals will be distributed to communities in Heidedal and Mangaung. Learners from Heidedal schools will entertain the public with their talents.

Our very popular family festival will already start at 16:00 with the opening of the gates at Chevrolet Park Cricket Stadium. Young and old will be entertained by well-known and vibrant artists, such as Robbie Wessels, Mango Groove, Zakes Bantwini, as well as a spectacular firework show. Come early to ensure a great spot on the grass.

The float winners will be announced at 17:00, whereafter the main procession of the day will depart from the Tempe robot in Nelson Mandela Drive at 18:00. The public can look forward to this ever popular procession through the streets of Bloemfontein, with decorated floats and students cradling collection tins proceeding to Chevrolet Park. The 2012/2013 UFS Rag queen, Mr Rag and their retinue will greet the public from the main float. Finalists for the 2013/2014 UFS Rag queen and Mr Rag titles, as well as drum majorettes, will also accompany the procession.

Do not miss out on this wonderful family festival – come early, bring your family and picnic blanket/chairs to ensure a great spot on the grass – a variety of refreshments will be on sale.

Tickets available from Computicket and entrance gates.

Tickets: R60 per person
R30 per child under 12

We would also like to make use of this opportunity to remind you of our vibrant 2013/2014 UFS Rag coronation ball, where the UFS Rag queen and Mr Rag CS for 2014 will be crowned on 14 February 2014 in the Callie Human Centre, UFS Campus.

Limited tickets will be available at R500 per couple and can be bought from the Rag Community Service office from 5 February 2014.

Enquiries:

Karen Scheepers +27(0)51 401 2423 ( ScheepersK@ufs.ac.za )
Esmé Wessels +27(0)51 401 3769 ( Wesselse@ufs.ac.za )

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