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Webster 1913 Edition

Noun.

[Named after

Dr. J.

Thomsen

Copenhagen

. See

(Min.)

A fluoride of aluminium, calcium, and sodium occurring with the cryolite of Greenland.

thomsenolite

(mineralogy) A monoclinic-prismatic mineral containing aluminum, calcium, fluorine, hydrogen, oxygen, and sodium.

thomsenolite Barthelmy, David (accessed 29 August 2016) Webmineral Mineralogy Database