durangite

== English == === Etymology === Named after Durango, a region in Mexico which is the main source of the gems, +‎ -ite. === Noun === durangite (plural durangites) A rare sodium aluminium arsenate fluoride gem with brittle crystals, chemical formula NaAl(AsO4)F. === Further reading === David Barthelmy (1997–2026), “Durangite”, in Webmineral Mineralogy Database. “durangite”, in Mindat.org, Keswick, Va.: Hudson Institute of Mineralogy, 2000–2026. === Anagrams === untriaged