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单词 pyrochroite
释义

Definition of pyrochroite in English:

pyrochroite

noun ˌpʌɪrə(ʊ)ˈkrəʊʌɪt
Mineralogy
  • A manganese-containing mineral which occurs in hydrothermal vein deposits, often as pale greenish or bluish crystals in foliated masses which darken on exposure.

Origin

Mid 19th century; earliest use found in James Dana (1813–1895), geologist, zoologist, and teacher. From German Pyrochroit from pyro- + ancient Greek χροιά colour + German -it, so called because it becomes coloured when heated.

Definition of pyrochroite in US English:

pyrochroite

nounˌpʌɪrə(ʊ)ˈkrəʊʌɪt
Mineralogy
  • A manganese-containing mineral which occurs in hydrothermal vein deposits, often as pale greenish or bluish crystals in foliated masses which darken on exposure.

Origin

Mid 19th century; earliest use found in James Dana (1813–1895), geologist, zoologist, and teacher. From German Pyrochroit from pyro- + ancient Greek χροιά colour + German -it, so called because it becomes coloured when heated.

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更新时间:2025/6/20 0:07:26