wurtzilite
(geology) A black, insoluble, carbonaceous material formed from the metamorphosis of shale oil.
(Tyneside) A cow with a white face and darker body.
(obsolete) Synonym of submicroscopic
Any weevil of the genus Pachyrhynchus
実験室での分析により、コア試料で見つかった黒色で不溶性の炭質物質が頁岩油の変成に由来することが確認された。
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