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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 History lecturer becomes Visiting Fellow at Harvard
2015-05-25

Dr Chitja Twala
Photo: Eugene Seegers

Prestige Scholar and lecturer of African/South African History at the UFS, Dr Chitja Twala, was recently accepted as a Visiting Fellow at the Harvard Graduate School of Arts and Sciences (GSAS).

A Visiting Fellow status is available to individuals holding a doctoral degree to pursue independent research at Harvard. The Fellowship is for non-degree purposes but aims at the enhancement and further intellectual development of those involved. It focuses on enrichment and development programmes.

Twala was appointed in the Department of History at the UFS in the beginning of 2003. His research field is Liberation History, with specific reference to the liberation movements on the SADC region. He has published extensively on this field and presented papers in local and international conferences.

“I applied (to Harvard GSAS) in April 2014 for the Fellowship through the South Africa Harvard Fellowship Programme,” says Twala.

“After being successful in the interviews conducted by the GSAS panel in July 2014, I had to apply for admission in the Department of African and African American Studies at Harvard, and got accepted for the Fall Semester of 2015.”

At Harvard, Twala will be mentored by Prof Emmanuel Akyeampong (African History Expert).

“Firstly, my main assignment will be to grasp a much deeper theoretical knowledge/framework in historical studies and a broader repertoire of methodologies in the field of African History. Secondly, if time permits, I will be presenting seminars and attending some in a very challenging, stimulating, and intellectually demanding environment where my ideas can be tested and expanded. Thirdly, I will be exposed to new trends as far as African historiography is concerned. Lastly, I will informally engage and exchange some ideas with some experts in the field of African History.”

The programme was recommended to Twala by the Vice-Chancellor and Rector, Prof Jonathan Jansen and Prof Ian Phimister, Centre for Africa Studies Senior Professor at UFS.

“As per the priorities of the Prestige Scholarship Programme, the Fellowship will assist in inculcating in me the intellectual breadth and depth required to pose critical questions and generate ground-breaking knowledge for History as a discipline. It is important for the UFS to establish and sustain international networks with other leading universities and scholars around the world.

“I applied for this Fellowship in order to advance further and broaden the scope in the three areas of scholarship in higher education: discovery, teaching, and public engagement,” says Twala.

Twala will be leaving for Harvard by mid-August and will return by the end of December 2015.

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