| 单词 | blue clay |
| 释义 | > as lemmasblue clay blue clay n. clay of a bluish colour; esp. (a) a kind of ball clay used to make earthenware; (b) = blue ground n. at Compounds 1d. ΘΚΠ the world > the earth > structure of the earth > constituent materials > earth or soil > kind of earth or soil > [noun] > mineral soil > blue earth blue clay1577 blue1873 blue ground1881 blue earth1883 the world > the earth > structure of the earth > constituent materials > clay > [noun] > suitable for pottery eartha1350 pot earth?a1450 slip1640 blue clay1698 figuline1859 pottery clay1869 society > occupation and work > materials > raw material > clay > [noun] > for making pottery > types of white claya1387 bottle clay1686 porcelain clay1690 blue clay1698 tasco1726 kaolin1728 capital1738 unaker1744 saggar1786 ball clay1811 Cornish clay1829 china-clay1840 Poole clay1875 bleaching-clay1881 pâte1890 virgin clay1891 1577 W. Harrison Hist. Descr. Islande Brit. i. xiii. f. 37v/2, in R. Holinshed Chron. I But where the blewe claye aboundeth (which hardelye drinketh vppe the winters water in long season) there the grasse is speary, rough, and very apte for bushes. 1698 R. Thoresby in Philos. Trans. (Royal Soc.) 20 311 I got also some Scars of broken Urns,..which are of the finest blew Clay I have seen. 1733 W. Ellis Chiltern & Vale Farming i. 17 Black or blew Clays—I am now come to touch on the very best of all Clays. 1811 W. Watson Delineation Strata of Derbyshire xxvii. 64 This Stratum is separated from the Limestone by beds of Blue Clay, called Wayboard. 1886 G. A. Farini Through Kalahari Desert iii. 31 Two, three, four blasts followed..and some tons of hard blue clay were loosened ready to be carried to the ‘floors’. 1938 Thorpe's Dict. Appl. Chem. II. 309/1 Diamonds occur sparingly in river beds or embedded in ‘blue clay’. 1957 Encycl. Brit. VII. 842/2 Ball Clay. This..is sometimes known as blue clay, owing to its greyish-blue colour, which is due to organic matter. When fired..it becomes white. 2005 Market News Publishing (Nexis) 4 May Mineral Services of Vancouver has analyzed two samples of blue clay taken at Fox River. The samples contain grains of chromite, chromium-diopside, ilmenite and olivine, which are potentially kimberlitic. < as lemmas |
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