hauerite

== English == === Etymology === From Hauer +‎ -ite, after Austrian geologists Joseph and Franz Ritter von Hauer. === Noun === hauerite (uncountable) (mineralogy) A manganese sulfide mineral, MnS2, that forms reddish-brown or black octahedral crystals. === Further reading === David Barthelmy (1997–2026), “Hauerite”, in Webmineral Mineralogy Database. “hauerite”, in Mindat.org‎[1], Hudson Institute of Mineralogy, 2000–2026.