Emily Dickinson Lexicon
Definition for PER'I-GORD-STONE
PER'I-GEE, or PER-I-GE'UMPER'I-GRAPH
PER'I-GORD-STONE, n.
An ore of manganese of a dark gray color, like basalt or trap; so called from Perigord, in France. – Encyc.
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