单词 | phonolite |
释义 | phonolite —phonolitic /fohn'l it"ik/, adj. /fohn"l uyt'/, n. a fine-grained volcanic rock composed chiefly of alkali feldspar and nepheline, some varieties of which split into pieces that ring on being struck. [1820-30; < F < G Phonolith. See PHONO-, -LITE] |
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