AMYGDALOID
\ˈamɪɡdˌalɔ͡ɪd], \ˈamɪɡdˌalɔɪd], \ˈa_m_ɪ_ɡ_d_ˌa_l_ɔɪ_d]\
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A variety of trap or basaltic rock, containing small cavities, occupied, wholly or in part, by nodules or geodes of different minerals, esp. agates, quartz, calcite, and the zeolites. When the imbedded minerals are detached or removed by decomposition, it is porous, like lava.
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Alt. of Amygdaloidal
By Oddity Software
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A variety of trap or basaltic rock, containing small cavities, occupied, wholly or in part, by nodules or geodes of different minerals, esp. agates, quartz, calcite, and the zeolites. When the imbedded minerals are detached or removed by decomposition, it is porous, like lava.
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Alt. of Amygdaloidal
By Noah Webster.
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Almond-shaped. [Gr.]
By Smith Ely Jelliffe