Emily Dickinson Lexicon
Definition for POR'CEL-LA-NITE
POR'CEL-LA-NITE, n.
A silicious mineral, a species of jasper, of various colors. It seems to be formed accidentally in coal mines which have indurated and semi-vitrified beds of coal-shale or slate-clay. It is sometimes marked with vegetable impressions of a brick red color. – Kirwan, from Peithner. Cyc. Cleaveland.
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