Thomsenolite is a mineral with formula: NaCaAlF6·H2O. It is an alteration product of cryolite. It was discovered in 1868 in Ivigtut, Greenland and named for Hans Peter Jorgen Julius Thomsen (1826–1909). ... Found on http://en.wikipedia.org/wiki/Thomsenolite
Thom'sen·o·lite noun [ Named after Dr. J. Thomsen of Copenhagen. See -lite .] (Min.) A fluoride of aluminium, calcium, and sodium occurring with the cryolite of Greenland. Found on http://www.encyclo.co.uk/webster/T/46
Thomsenolite, named after Dr. J. Thomsen of Copenhagen, is a fluoride of aluminium, calcium, and sodium occurring with the cryolite of Greenland. Found on http://www.probertencyclopaedia.com/browse/HT.HTM