单词 | quartz vein |
释义 | > as lemmasquartz vein quartz vein n. ΚΠ 1776 R. E. Raspe tr. J. J. Ferber Trav. Italy 37 This slate is of a clayish (argillaceous) substance,..crossed by Quartz veins. 1867 Weekly New Mexican 23 Feb. 1/4 There are hardly any persons in this part of the country, who are able to raise money enough to work quartz-veins. 1991 Sci. Amer. May 48/1 They traced the gold upstream to its source: the Mother Lode, a system of white quartz veins containing gold that is 150 miles long. < as lemmas |
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