trondhjemite

== English == === Etymology === From Trondhjem +‎ -ite. === Noun === trondhjemite (countable and uncountable, plural trondhjemites) (mineralogy) A leucocratic intrusive igneous rock, a variety of tonalite in which the plagioclase is mostly in the form of oligoclase. ==== Derived terms ==== ==== See also ==== plagiogranite