Minerals and mineral deposits (contact: Sven Karup-Møller)
Minerals and mineral deposits are a prerequisite for our modern technological society. A few facets of this wide field are in focus.
The occurrence of gold and associated sulphides in low temperature carbonate bearing mineral veins from the Zillintoe gold deposit in southern China is studied. The description of new minerals, and additional information on known minerals are developed, focusing on crystal structure determination of selected synthetic sulphides, selenides and tellurides. Currently the phase CuBi3Se5 is studied.
Three- and four-component phase diagrams completed at selected temperatures between 300 and 1200oC are developed for Cu-bearing sulphides, tellurides, and selenides (Current focus: Cu-Fe-Se phase system) and platinum and metal sulphides and selenides (current focus: Pd-Cu-Fe-S and Pd-Cu-Se phase systems). The solubility of minor elements (Fe, Zn, Se, Te, Hg, Mn, Ga, In etc) in synthetic tetrahedrite and tennantite is also studied.