sussexite

== English == === Etymology === From Sussex +‎ -ite, after Sussex County, New Jersey, where it was first discovered in 1868. === Noun === sussexite (usually uncountable, plural sussexites) (mineralogy) A monoclinic manganese borate mineral with the chemical formula MnBO2(OH). === Further reading === David Barthelmy (1997–2026), “Sussexite”, in Webmineral Mineralogy Database. “sussexite”, in Mindat.org, Keswick, Va.: Hudson Institute of Mineralogy, 2000–2026.