A really good sized specimen in which we highlight various orange willemite crystals, the main one is doubly terminated. They are included in rhodochrosite and on a matrix with franklinite crystals. This specimen is from the Renaud Vochten collection. The intense fluorescence of willemite stands out with a yellowish-green emission under short-wave ultraviolet light. Renaud F.C. Vochten (8 December 1933 - 29 July 2012), professor of mineralogy at the State University of Antwerpen (Belgium), with a species dedicated: vochtenite [link].

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