名詞 rhyolite:

1. very acid volcanic rock

rhy.o.lite

n.（名詞）
A fine-grained extrusive volcanic rock, similar to granite in composition and usually exhibiting flow lines.
流紋巖：一種精細(xì)紋理的噴出火山巖，在成分上類似于花崗巖并通常顯現(xiàn)流線

來源：
Greek rhuax [stream] from rhein [to flow] * see sreu-
希臘語 rhuax [氣流] 源自 rhein [流] *參見 sreu-
-lite
-lite