Fredrik Johan Wiik

Fredrik Johan Wiik ( born December 16, 1839 in Helsinki, † June 15, 1909 ) was a Finnish geologist and mineralogist.

Wiik studied in Helsinki and at the Mining Academy Freiberg (1865 /66). He received his doctorate in 1865 and became associate professor in 1867 and in 1877 the first Professor of Geology and Mineralogy at the University of Helsinki ( the professor himself had been established in 1852 ).

He was the first Finnish geologist who used the petrographic microscope and applied it to the investigation of the petrology of the Finnish crystalline basement. He was a founder of the Geological Society of Finland and its first president. He developed his own atomic theory of crystal structures.

In his last drive, he published a highly speculative triadic - monistic worldview that anti - actualistic views represented. He died with a hammer in hand, alone on a geological field trip.

He was an honorary member of the Mineralogical Society of Great Britain and Ireland and a member of the Finnish Academy of Sciences. The mineral wiikit is named after him.

Among his pupils was John Jacob Sederholm.

Writings

• Bidrag till Helsingforstraktens mineralogical och geognosi, Helsinki 1865 ( contribution to the mineralogy and geology of the region of Helsinki, PhD thesis, Swedish, chemical analysis of minerals in the area of Helsinki )
• Öfversikt af Finlands Geologiska förhållanden 1876 ( overview of the geology of Finland, Swedish)
• Mineral Karakteristik, en handledning vid bestämmandet af Mineralier och Bergarter Helsinki 1881