Rhyolite
Rhyolite is a fine-grained volcanic rock. It is pale coloured, often light grey, tan or pinkish. Rhyolite is made up of quartz and feldspar crystals, and occasionally contains some dark colored minerals.
Rhyolite is a fine-grained volcanic rock. It is pale coloured, often light grey, tan or pinkish. Rhyolite is made up of quartz and feldspar crystals, and occasionally contains some dark colored minerals.
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