Min. [Named, 1868, after Dr. Julius Thomsen of Copenhagen: see -LITE.] Hydrous fluoride of aluminium, calcium, and sodium, found with pachnolite on the cryolite of Greenland.
1868. Dana, Min., 129. Thomsenolite … was first noticed by Dr. Julius Thomsen of Copenhagen, the originator of the cryolite industry, after whom it is here named.
1883. Science, I. 331/2. It is distinguished from thomsenolite by its absence of water.
