pigeonite From WikiWord, the free dictionary English Contents DefinitionsRelated wordsReferences DefinitionsnounAny monoclinic pyroxene that is a mixed calcium, magnesium and ferrous silicate Related wordsSynonymspiemontitepyroxenepyroxmangitedypingitediopsidepanethitepyroxenitepyroxferroitemonticellitepyreneitemonetitepinakiolitepyribolemongolitepickeringitepoitevinite References Wiktionary — pigeonite Wikipedia — pigeonite