cerusite--prophetes.ai

cerussite, cerusite Min.
  (ˈsɪərəsaɪt)
  [f. L. cērussa ceruse + -ite. (Named 1845.)]
  Native carbonate of lead, white lead ore.

1850 Dana Min. 498 Cerusite isomorph with aragonite. 1885 Erni Min. 262 Color of cerussite, white.

Oxford English Dictionary