rhyolite

[地]流纹岩英释中释na fine-grained igneous rock consisting of quartz, feldspars, and mica or amphibole

1 Topaz occurs in the igneous rock rhyolite..黄晶通常产于火成岩岩石纹。

2 People come to this area in order to see the colorful rhyolite mountains..人们来到这个地区是为了观看那里五彩缤纷的流纹岩山脉。

3 The violent and unexpected nature of the blasts, together with their rarity, means the Chaiténeruption is the first rhyolite event to have been scientifically assessed in this way [ABC News]..其猛烈及难以预料的自然爆发，及它们的罕见程度, 意味着Chaitén火山爆发已经被这样合乎逻辑地评估为第一个流纹岩活动 [美国广播公司消息]。