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ashiny,yellowmineralcontainingironandsulphur, thatlookslikegoldbut is notvaluable 硫化矿，黄铁矿（一种有光泽的黄色矿，含硫和一种金属，通常是铁） Dorling Kindersley: Richard Leeney/GettyImages SMART Vocabulary: related words and phrasesGeology: mineralogy - concentrate
- crude
- crystal
- crystalline
- deposit
- fool's gold
- gold dust
- intercrystalline
- magnesium
- mica
- mineral
- mineralogical
- mineralogist
- nugget
- prospector
- quasicrystal
- seam
- silicate
- silicon
- zircon
See more results » Examplesofpyritepyrite Scattered grains of pyrrhotite, chalcopyrite,pyriteand cubanite also occur.From theCambridge English Corpus Occasionally it contains pods (greater than 1 cm) of black sandstone enriched in carbon andpyrite.From theCambridge English Corpus Some samples contain trace amounts ofpyriteand chalcopyrite.From theCambridge English Corpus The palynomorphs are, in general, poorly preserved, moderately carbonized, brown to dark brown, and oftenpyrite-impregnated.From theCambridge English Corpus The inlays of the lateral incisors are of greenstone, while those of the canines are ofpyrite.From theCambridge English Corpus Only bed 31g yieldedpyriteframboids in this section.From theCambridge English Corpus However,pyriteframboid data indicate variation in the intensity of oxygen restriction.From theCambridge English Corpus Studies of ancient sediments revealpyriteframboid analyses can additionally provide a subtle indicator of environmental stability.From theCambridge English Corpus Yet when the average speaker employs "gold," he or she refers to gold and not (also) to ironpyrite.From theCambridge English Corpus Analysis of anions leached from rock samples suggests that subsurfacepyriteweathering is centered at two zones within the ore body.From theCambridge English Corpus It is based on the idea that the amount ofpyriteformed in the sediment depends on the availability of iron (and/or organic carbon).From theCambridge English Corpus Most are flattened; the remainder are preserved in three dimensions, but have suffered from 'pyritedisease' (decomposition).From theCambridge English Corpus The sulphide phase involves the precipitation of both fine-grained and coarsely crystalline sulphides (chalcopyrite, sphalerite, galena,pyrite) with quartz, dolomite, calcite, malachite and pink baryte.From theCambridge English Corpus Accessory phenocrysts include untwinned albite of < 8 %, magnetite < 4 % and zircon in trace, as well as replacementpyriteof < 12 % and chalcopyrite in trace.From theCambridge English Corpus The inlay in the left canine is a convex-faced disk ofpyrite, while the inlay for the right canine is missing.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. |