| 单词 | feldspar |
| 释义 | Word Frequency feldspar(ˈfɛldˌspɑː, ˈfɛlˌspɑː) or felspar noun any of a group of hard rock-forming minerals consisting of aluminium silicates of potassium, sodium, calcium, or barium: the principal constituents of igneous rocks. The group includes orthoclase, microcline, and the plagioclase minerals Derived forms feldspathic (fɛldˈspæθɪk, fɛlˈspæθ-), felspathic (felˈspathic) or feldspathose (ˈfeldspathˌose) or felspathose (ˈfelspathˌose) adjective Word origin C18: from German feldspat(h), from feld field + spat(h) spar3 |
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