Submitted by György Chityil ... on Fri, 01/19/2018 - 23:58 Hierarchy: NounDescription: {{geology}} A high-pressure phase of several minerals, including magnesium silicateNgram: postperovskiteNgram Text: postperovskiteSource: WiktionaryIssue: 0Wiktionary tag: geologyNgram Count: 1