Hello friends. Good news: Hugo Rietveld has its own mineral species: rietveldite was just approved.
Ref.: Kampf, A.R., Sejkora, J., Witzke, T., Plášil, J., Čejka, J., Nash, B.P., Marty, J. (2016): Rietveldite, IMA 2016-081. CNMNC Newsletter No. 34, December 2016, page 1320; Mineralogical Magazine: 80: 1315–1321; http://forum.amiminerals.it/viewtopic.php?f=5&t=13259 (2016) -- Łukasz Kruszewski, Ph.D., adjunct Polish Academy of Sciences Institute of Geological Sciences Twarda 51/55 str. 00-818 Warsaw Poland
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