单词 | amygdule |
释义 | amygdulen. Geol. (See quot.) ΘΚΠ the world > the earth > minerals > types of mineral > [noun] > other general types fluor1610 sulphur1799 amygdule1877 heavy mineral1893 fem1902 sal1902 stress mineral1913 opaque1960 1877 J. Le Conte Elem. Geol. (1879) 211 Sometimes the filling has taken place very slowly by successive additions of different coloured material. Thus are formed the beautiful agate pebbles, or more properly, amygdules. 1882 A. Geikie Text-bk. Geol. ii. ii. ii. 62 Secondary minerals (amygdules) such as calcite, calcedony, quartz, and zeolites. This entry has not yet been fully updated (first published 1884; most recently modified version published online November 2010). < n.1877 |
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