pharmacolite
[fahr-mak-uh-lahyt, fahr-muh-kuh-]
noun
hydrous calcium arsenate, 2CaO⋅As2O5⋅5H2O, formed by natural alteration of mineral deposits containing arsenopyrite and arsenical ores of cobalt and silver.
Origin of pharmacolite
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019