| 单词 | mountain soap |
| 释义 | > as lemmasmountain soap mountain soap n. [after German Bergseife (A. G. Werner Cronstedt's Versuch einer Mineralogie (1780) 189)] Mineralogy (now historical) a kind of dark earthy clay, probably a halloysite. ΚΠ 1794 R. Kirwan Elements Mineral. (ed. 2) I. 189 The earth called mountain soap. 1993 A. M. Clark Hey's Mineral Index (ed. 3) 427/2 Mountain soap, syn. of Bergseife (= halloysite). < as lemmas |
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