AMYGDALOIDAL • FREE TRANSLATOR.ORG • Definition of Amygdaloidal

... amber-coloured crystals of the same mineral are found in the fuller's earth at Nutfield in Surrey; and the septarian nodules in London Clay contain crystals of barytes as well as of calcite. Crystals are found as a rarity in the amygdaloidal cavities of igneous rocks. ...

— Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 3 - "Banks" to "Bassoon" • Various

... Has not all this, and the very title, for any thing I know, been done already by another, by a wiser? and, if so, by whom?—Speak, some friend: it is the misfortune of mere thinkers (and this present amygdaloid mass, this breccia book, exemplifies it well) to stumble frequently upon fancies too good not to have been long ago appropriated by others like-minded. A read, or heard, hint may be the unerring clue, and we vainly imagine some old labyrinth to be our new ...

— The Complete Prose Works of Martin Farquhar Tupper • Martin Farquhar Tupper