Ge‐oc″ro‐nite (?), n. [Gr. γέα, γη̑, the earth + Κρόνοσ Saturn, the alchemistic name of lead: cf. G. geokronit.] (Min.) A lead-gray or grayish blue mineral with a metallic luster, consisting of sulphur, antimony, and lead, with a small proportion of arsenic.
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Webster's Dictionary 1913
Webster's Revised Unabridged Dictionary, C. & G. Merriam Co., 1913.