Submitted by György Chityil ... on Sat, 01/20/2018 - 01:20 Hierarchy: NounDescription: {{mineralogy}} A monoclinic-prismatic gray mineral containing bismuth, lead, silver, and sulfur.Ngram: vikingiteNgram Text: vikingiteSource: WiktionaryIssue: 0Wiktionary tag: mineralogyNgram Count: 1