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单词 cockscomb pyrites
释义

> as lemmas

cockscomb pyrites
cockscomb pyrites n. now rare a variety of marcasite (pyrites) occurring as groups of parallel flattened crystals arranged in a shape resembling a cock's crest.
ΚΠ
1821 R. Jameson Man. Mineral. 274 Cockscomb-Pyrites.
1842 Synopsis Contents Brit. Mus. (ed. 44) 161 Radiated pyrites, a substance very subject to decomposition, and to which belong most of the varieties of what is commonly called lenticular or coxcomb-pyrites.
1978 J. Bevan et al. in J. Woolley Illustr. Encycl. Mineral Kingdom 122/1 Marcasite... Often repeatedly twinned on {101} giving stepped or fan-like crystals (cockscomb pyrites).
extracted from coxcombn.
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as lemmas
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