单词 | rhyolite |
释义 | rhyolite/ˈrʌɪəlʌɪt /noun [mass noun] Geology A pale fine-grained volcanic rock of granitic composition, typically porphyritic in texture.A trail up the east side of the mountain, on public land, can still be taken, but collecting is now much more difficult in the limited amount of solid, unbroken rhyolite exposed on the summit....
OriginMid 19th century: from German Rhyolit, from Greek rhuax 'lava stream' + lithos 'stone'. |
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