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Webster 1913 Edition

Noun.

[From R. D.

Thomson

, of Glasgow.]

(Min.)

A zeolitic mineral, occurring generally in masses of a radiated structure. It is a hydrous silicate of aluminia, lime, and soda. Called also

mesole

, and

comptonite

Noun.

[from Thomson.] A mineral of the zeolite family, occurring generally in masses of a radiated structure.

Thomsonite

thomsonite ‎(plural thomsonites)