A cone formed around a volcanic vent by fragments of lava thrown out during eruptions.
- Small vesicular pieces of volcanic material, scoria, collect around the vent to form a cinder cone.
- Pago is a cinder cone about 820 feet high near the center of the caldera.
- Ground was broken to begin construction on a cinder cone atop an inactive volcano called Mauna Kea.
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Syllabification: cin·der cone
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