| 单词 | free gold |
| 释义 | > as lemmasfree gold free gold n. gold occurring naturally in a pure state, unmixed with other substances. ΘΚΠ the world > the earth > minerals > types of mineral > native elements and alloys > [noun] > native gold gold dust1607 virgin gold1673 sand gold1766 vein gold1834 rhodium gold1844 free gold1854 shot gold1858 flour-gold1869 stream-gold1875 1854 J. B. Trask Geol. Surv. Calif. 83 The La Fayette Hill vein..contained a large quantity of peroxide iron and free gold. 1897 ‘M. Twain’ Following Equator 687 No way of getting anything out of the rock but the coarser-grained ‘free’ gold. 1995 Econ. Hist. Rev. 48 309 The ‘free gold’ of the weathered zone was relatively easily extracted..by a simple process of amalgamation with mercury. < as lemmas |
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