最終更新日:2024/08/02
(geology) decomposed rock, usually reddish or ferruginous (owing to oxidized pyrites), forming the upper part of a metallic vein
正解を見る
gossan
編集履歴(0)
(geology) decomposed rock, usually reddish or ferruginous (owing to oxidized pyrites), forming the upper part of a metallic vein
gossan