serpierite
noun
ser·pie·rite
ˈsərpēəˌrīt,
sərˈpiˌr-
plural -s
: a mineral (Cu,Zn,Ca)5(SO4)2(OH)6.3H2O consisting of a hydrous basic sulfate of copper, calcium, and zinc occurring in small tabular bluish green crystals and tufts
Word History
Etymology
French serpierite, from J. B. Serpieri, 19th century Italian engineer, explorer of the ancient silver mines at Laurium + French -ite