Fredrik Johan Wiik, also known as F.J. Wiik, (16 December 1839 in Helsinki – 15 June 1909 in Helsinki) was a Finnish geologist and mineralogist; in 1877, he was named the first professor of geology and mineralogy at the Imperial Alexander University of Finland,Finnish Museum of Natural History 2004/2005 Yearbook (requires Acrobat Reader) where his students included Jakob Sederholm100 years of migmatite - In Sederholms footsteps , 33 IGC Excursion No. 16, August 16–21, 2008; at the International Union of Geological Sciences; retrieved August 30, 2013 and Wilhelm Ramsay.
He was also the first scientist in Finland to use a petrographic microscope. He was also corresponded with Kaj Himberg, Finland-Swedish inventor, engineer, and geologist for a time regarding the Ängskärsfjärden in the 1890s.
Wiik died in 1909, on a geological expedition; his body was found clutching his geologist's hammer.WIIK, Fredrik Johan: The Mineralogical Record , at Curtis Schuh's Biobibliography of Mineralogy
The mineral wiikite is named for him.
Personal life Wiik was the son of noted Finnish architect .Suomen elämäkerrasto, 1955 edition. by Ilmari Heikinheimo; published by Werner Söderström Osakeyhtiö, 1955. (page 822)
References