arsenolite

[ ahr-sen-l-ahyt ]
/ ɑrˈsɛn lˌaɪt /

noun

a mineral, arsenic trioxide, As2O3, occurring usually as a white incrustation on arsenical ores.

Origin of arsenolite

First recorded in 1850–55; arseno- + -lite
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019