Peacock copper ore - Peacock copper ore

Japanese: クジャク銅鉱 - くじゃくどうこう
Peacock copper ore - Peacock copper ore

…New fractures are copper-red in color, but when exposed to air, the surface changes to purple. This color change occurs in patches, so it is also called peacock copper or bornite. It is found in the secondary enrichment zones of various copper deposits, and significantly increases the grade of the ore. …

*Some of the terminology that refers to "peacock copper ore" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…新しい破面は赤銅色であるが,空気中で表面が紫色に変化する。この色の変化が斑状に起こるのでクジャク銅鉱peacock copperとも呼ばれ,斑銅鉱と名づけられている。各種の銅鉱床の二次富化帯に見られ,著しく鉱石の品位を上げる。…

※「クジャク銅鉱」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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