hematite
noun[C]
uk/ˈhiː.mə.taɪt/us/ˈhiː.mə.taɪt/USspelling ofhaematite
赤铁矿（haematite的美式拼写）
| 单词 | hematite |
| 释义 | hematite noun[C] uk/ˈhiː.mə.taɪt/us/ˈhiː.mə.taɪt/USspelling ofhaematite 赤铁矿（haematite的美式拼写）Examplesofhematitehematite This suggests thehematitecrystals are not oxidation products of siderite, because pyrite is easily altered to goethite under an oxygenated atmosphere. From theCambridge English Corpus Each household had at least one, and often a few,hematite(iron oxide) cylinders. From theCambridge English Corpus They also had to obtain theirhematitepigment cylinders, seashells, presumably salt, and some other commodities from central places outside the village. From theCambridge English Corpus The cylinders were made of powderedhematiteheld together by an unknown, but presumably organic, binder, and they were of a standardized size and shape. From theCambridge English Corpus The topography and chaotic terrain may favor a hydrothermal aquifer as the original setting wherehematiteformed. From theCambridge English Corpus The fault planes are characterized by anastomosing clayey gouge layers with thin (1 mm-10 cm) zones of cataclasite, breccia andhematite-clay-coated fractured rock. From theCambridge English Corpus One of the young adults was closely associated with a layer of groundhematiteand two jade beads. From theCambridge English Corpus Future activities include climbing out of the crater and investigating thishematite-rich material. From theCambridge English Corpus So, too, it appears thathematite-a red oxide powder sprinkled over mortuary remains-was not widely available. From theCambridge English Corpus Secondary minerals are epidote, calcite, chlorite andhematite. From theCambridge English Corpus The black bands contain aggregates of magnetite grains that fill similar botryoid cells withhematiteone. From theCambridge English Corpus Elsewhere, acquired magnetizations continue to climb in higher fields, indicating thathematiteis a significant ferromagnetic component in both pluton and aureole. From theCambridge English Corpus The landing site was selected partly because coarse grayhematitewas expected to be present on the basis of orbital data. From theCambridge English Corpus Households often kept mica near thehematite, perhaps as a "poor person's" imitation of specularhematitepigment. From theCambridge English Corpus Figure 4a shows a microfold from a bandedhematitequartzite sample. From theCambridge English Corpus These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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