1. relating to or composed of rhyolite, a fine-grained volcanic rock rich in silica
Usage: geological

Examples

• The rhyolitic lava flow created a distinctive light-colored rock formation.
• Geologists identified rhyolitic deposits in the ancient volcanic field.
• The rhyolitic composition indicates high silica content in the original magma.
• Rhyolitic rocks are typically lighter in color than basaltic ones.
• The mountain’s rhyolitic dome formed during the last volcanic eruption.
• Scientists studied the rhyolitic ash layers to understand past eruptions.