rhyolite
/ˈraɪəlaɪt/Definitions
1. noun
A type of igneous rock that is light in color and has a porphyritic texture, often containing large crystals of feldspar.
“The geologist studied the unique properties of the rhyolite rock formation in the national park.”
2. noun
A type of volcanic rock that is rich in silica and has a glassy texture.
“The rhyolite deposits were found in the volcanic region, and geologists were interested in studying their composition.”