pentlandite

== English == === Etymology === From Pentland +‎ -ite, after Joseph Barclay Pentland. === Noun === pentlandite (countable and uncountable, plural pentlandites) (mineralogy) A mixed iron and nickel sulfide mineral, with the chemical formula (Fe,Ni)9S8; the major ore of nickel. ==== Derived terms ==== === Further reading === David Barthelmy (1997–2026), “Pentlandite”, in Webmineral Mineralogy Database. “pentlandite”, in Mindat.org, Keswick, Va.: Hudson Institute of Mineralogy, 2000–2026.