Many other copper deposits are known for quantities of colorful azurite, malachite, cuprite, native copper. How many colorful azurite and malachite specimens have you heard about from Butte? For the most part, Butte species, though secondary, are gray, gray-black, or black. The majority of Butte’s minerals are sulfides, not carbonates, arsenates, or oxides. The deposit was composed mainly of deeply seated veins of covellite, enargite, chalcopyrite, chalcocite, bornite, and rare copper species like digenite, colusite, and djurleite.
この記事は Rock&Gem Magazine の October 2020 版に掲載されています。
7 日間の Magzter GOLD 無料トライアルを開始して、何千もの厳選されたプレミアム ストーリー、9,000 以上の雑誌や新聞にアクセスしてください。
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この記事は Rock&Gem Magazine の October 2020 版に掲載されています。
7 日間の Magzter GOLD 無料トライアルを開始して、何千もの厳選されたプレミアム ストーリー、9,000 以上の雑誌や新聞にアクセスしてください。
すでに購読者です? サインイン
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