Wiktionary
marrite
n. (context mineralogy English) A monoclinic-prismatic mineral containing arsenic, lead, silver, and sulfur.
Wikipedia
Marrite
Marrite (mar'-ite) is depicted by the chemical formula PbAgAsS. It is the arsenic equivalent of mineral freieslebenite (PbAgSbS), but also displays close polyhedral characteristics with sicherite and diaphorite. Marrite was named in honor of geologist John Edward Marr (1857–1933) of Cambridge, England.
Usage examples of "marrite".
Twenty-one woke with a bad head just before lunchtime and sat in front of re-runs of The A-Team with a pile of Marrite on toast and a large glass of Diet Coke.