pharmacolite

noun

phar·​mac·​o·​lite

färˈmakəˌlīt,

fȧˈm-;

plural -s

: a monoclinic mineral CaH(AsO₄).2H₂O that is a hydrous acid calcium arsenate occurring in silky fibers of a white or grayish color (hardness 2–2.5, specific gravity 2.64–2.73)

Word History

Etymology

German pharmakolith, from pharmako- pharmaco- + lith -lite

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