鉱物16byyu_GeneralCorundum0Corundum is a mineral form of aluminium oxide (Al2O3).0EditEdit History242050Last updated: 191 days agoReport a problem日本語Contents1 Article in Other LanguagesArticle in Other LanguagesコランダムRelated ArticlesParent ArticleMineralChild ArticleRubySapphireSibling ArticleObsidianGemstoneSugiliteAgateCommentsComment field is emptyIllustrations on pixivShow allコランダム 火之群 社さまとろ
