Submitted by György Chityil ... on Fri, 01/19/2018 - 22:05 Hierarchy: NounDescription: {{geology}} A grey intrusive igneous rock composed mostly of plagioclase feldspar, biotite, hornblende and/or pyroxene.Ngram: dioriteNgram Text: dioriteSource: WiktionaryIssue: 0Wiktionary tag: geologyNgram Count: 1