英语词汇“alkali feldspar”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

> as lemmas

alkali feldspar

alkali feldspar n. Mineralogy any mineral of the feldspar group which is rich in sodium and potassium; spec. one in which potassium is more abundant than sodium or calcium.

ΚΠ

1897 Philos. Trans. 1896 (Royal Soc.) A. 187 196 These rocks consist mainly of an alkali-felspar with more or less quartz and certain accessory minerals.

1948 R. M. Pearl Pop. Gemol. iv. 178 Like orthoclase, microcline is a so-called potash or alkali feldspar and has the same chemical formula.

2002 Oxoniensia 66 143 The sectioning of the fragment..has shown that the white flecks are phenocrysts of alkali feldspar.

extracted from alkalin.adj.

as lemmas

单词	alkali feldspar
释义	> as lemmas alkali feldspar alkali feldspar n. Mineralogy any mineral of the feldspar group which is rich in sodium and potassium; spec. one in which potassium is more abundant than sodium or calcium. ΚΠ 1897 Philos. Trans. 1896 (Royal Soc.) A. 187 196 These rocks consist mainly of an alkali-felspar with more or less quartz and certain accessory minerals. 1948 R. M. Pearl Pop. Gemol. iv. 178 Like orthoclase, microcline is a so-called potash or alkali feldspar and has the same chemical formula. 2002 Oxoniensia 66 143 The sectioning of the fragment..has shown that the white flecks are phenocrysts of alkali feldspar. extracted from alkalin.adj. < as lemmas
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