Submitted by György Chityil ... on Fri, 01/19/2018 - 20:25 Hierarchy: NounDescription: {{mineralogy}} A dark brown mica; it is a mixed aluminosilicate and fluoride of potassium, magnesium and ironNgram: biotiteNgram Text: biotiteSource: WiktionaryIssue: 0Wiktionary tag: mineralogyNgram Count: 1
