| 单词 | micaceous shale |
| 释义 | > as lemmasmicaceous shale Containing or resembling mica; characteristic of, relating to, or of the nature of mica. Frequently in descriptive names of rocks, as micaceous lava, micaceous sandstone, micaceous schist, micaceous shale, micaceous slate, etc. ΘΚΠ the world > the earth > minerals > mineral sources > [adjective] > yielding a mineral or metal > mica micaceous1752 the world > the earth > minerals > types of mineral > silicates > phyllosilicate > [adjective] > mica glimmery1683 speculary1694 micaceous1752 1752 J. Pringle Observ. Dis. Army i. vi. 60 A great many small but heavy stones, of the micaceous kind, are found upon the beach. 1770 G. von Engeström & E. M. da Costa tr. A. F. Cronstedt Ess. Syst. Mineral. xciii. 103 The Micaceous Kind [Sw. Glimmerarter]... The Glimmer, Daze, or Glist. 1774 T. Pennant Tour Scotl. 1772 153 A micaceous slate, mixed with quartz. 1813 H. Davy Elements Agric. Chem. iv. 168 Micaceous schistus, which is composed of quartz and mica arranged in layers. 1833 C. Lyell Princ. Geol. III. 222 The lacustrine strata are composed of gravel, grit and micaceous sandstone. 1849 J. G. Bruff Jrnl. 3 Aug. in Gold Rush (1944) I. i. 65 A pearl-colored micacious clay. 1869 J. Phillips Vesuvius x. 290 Humboldtilite..occurs in gray micaceous lava of Somma. 1882 A. Geikie Text-bk. Geol. ii. ii. iii As this silvery lustre is..due to the presence of mica, it is commonly called distinctively micaceous. 1921 Mineral. Abstr. 1 125 Phosphophyllite from Hagendorf, colourless to pale-blue, well-developed, monoclinic crystals,..with perfect micaceous cleavage and lamellar twinning. 1956 Geol. Mag. 93 164 Recrystallization of the micaceous minerals in the ground-mass increases. 1973 Jrnl. Geol. (Chicago) 81 229 Shortite..occurs in the groundmass of micaceous kimberlite dikes. 1991 R. Goldring Fossils in Field ix. 174 Carbonization of organic matter or replacement by a micaceous mineral is common. < as lemmas |
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