英语词汇“needle-ironstone”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

needle-ironstone n. now historical a variety of goethite (hydrated iron oxide) occurring as needle-shaped crystals.

ΚΠ

1868 J. D. Dana Syst. Mineral. (ed. 5) 170 In acicular or capillary (not flexible) crystals, or slender prisms, often radiately grouped: the Needle-Ironstone (Nadeleisenstein).

1873 R. Mallet tr. L. L. de Koninck Pract. Man. Chem. Anal. & Assaying 257 Other varieties [of göthite] are named needle iron stone, lepidocrocite, etc.

1993 A. M. Clark Hey's Mineral Index (ed. 3) 488/1 Needle-ironstone, syn. of goethite.

单词	needle-ironstone
释义	> as lemmas needle-ironstone needle-ironstone n. now historical a variety of goethite (hydrated iron oxide) occurring as needle-shaped crystals. ΚΠ 1868 J. D. Dana Syst. Mineral. (ed. 5) 170 In acicular or capillary (not flexible) crystals, or slender prisms, often radiately grouped: the Needle-Ironstone (Nadeleisenstein). 1873 R. Mallet tr. L. L. de Koninck Pract. Man. Chem. Anal. & Assaying 257 Other varieties [of göthite] are named needle iron stone, lepidocrocite, etc. 1993 A. M. Clark Hey's Mineral Index (ed. 3) 488/1 Needle-ironstone, syn. of goethite. extracted from needlen. < as lemmas
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> as lemmas