hackmanite

== English == === Etymology === From Hackman +‎ -ite, named according to Finnish geologist Victor Hackman who first discovered the mineral in Kola peninsula. === Noun === hackmanite (countable and uncountable, plural hackmanites) An important variety of sodalite exhibiting tenebrescence. ==== Translations ==== === Further reading === David Barthelmy (1997–2026), “Hackmanite”, in Webmineral Mineralogy Database. “hackmanite”, in Mindat.org, Keswick, Va.: Hudson Institute of Mineralogy, 2000–2026.