pharmacolite

[ fahr-mak-uh-lahyt, fahr-muh-kuh- ]
/ fɑrˈmæk əˌlaɪt, ˈfɑr mə kə- /

noun

hydrous calcium arsenate, 2CaO⋅As2O5⋅5H2O, formed by natural alteration of mineral deposits containing arsenopyrite and arsenical ores of cobalt and silver.

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Origin of pharmacolite

1795–1805; pharmaco- + -lite; modeled on German Pharmakolith
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020