| 单词 | rapakivi texture | 
| 释义 | rapakivi texture [¦rä·pǝ`kē·vē `teks·chǝr]  PETROLOGY An igneous and metamorphic rock texture in which spherical potassium feldspar crystals are surrounded by a rim of sodium feldspar, both within a finer-grained matrix.  | 
	
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