grunerite

== English == === Etymology === From Gruner +‎ -ite. === Noun === grunerite (countable and uncountable, plural grunerites) (mineralogy) An iron-rich amphibole related to cummingtonite. ==== Derived terms ==== === Further reading === David Barthelmy (1997–2026), “Grunerite”, in Webmineral Mineralogy Database. “grunerite”, in Mindat.org, Keswick, Va.: Hudson Institute of Mineralogy, 2000–2026.