Dec 1, 2018 - 00:00
Dec 1, 2018 - 00:00
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AMYG'DALOID, n. [Gr. an almond, and form;]

Toad-stone; a compound rock, consisting of a basis of basalt, greenstone or some other variety of trap, imbedding nodules of various minerals, particularly calcarious spar, quartz, agate, zeolite, chlorite, _c. When the imbedded minerals are detached, it is porous, like lava.

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