Greenockite

Japanese: greenockite
Greenockite

…It rarely exists as a single ore. It occurs in small quantities as greenockite and otavite (basic carbonate minerals), but zinc ores always contain it in a ratio of about 1/100 to 1/200 of the zinc content. In ancient Greece, sphalerite was called cadmeia, and cadmium was named after it, as it was often included in this mineral. …

From [Cadmium Minerals]

…A general term for minerals containing cadmium. Examples include greenockite (CdS), monteponite (CdO), otavite (CdCO 3 ) , and cadmoselite (CdSe), but occurrences of other minerals are rare and unimportant. Cadmium ore belongs to the hexagonal crystal system, but rarely forms hemihedral crystals. It is usually yellow with a resinous luster and occurs as a powder or earthy coating. …

*Some of the terminology that mentions "greenockite" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…単一の鉱石として存在することはほとんどない。硫カドミウム鉱greenockite,オタバイトotavite(塩基性炭酸塩鉱物)として少量産出するが,亜鉛鉱石には亜鉛の含有量に対し1/100~1/200程の割合で必ず含まれている。古代ギリシアでは,リョウ亜鉛鉱をカドメイアkadmeiaと呼んでいたが,この中にしばしば含まれるのでカドミウムと名づけられた。…

【カドミウム鉱物】より

…カドミウムを含む鉱物の総称。硫カドミウム鉱greenockite CdS,酸化カドミウム鉱monteponite CdO,オタバイトotavite CdCO3,セレンカドミウム鉱cadmoselite CdSeなどがあるが,硫カドミウム鉱以外の産出はまれで,重要でない。硫カドミウム鉱は六方晶系に属するが,異極半面像の結晶をなすことはまれで,ふつう樹脂状光沢の黄色を呈し,粉状または土状被膜として産する。…

※「greenockite」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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