rhyolite

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

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。

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]。