Columnar basalt at Kirkjubæjarklaustur near the south coast of Iceland
Category: Parai Lab
Olivine-rich basalt cobbles on the shore of Þingvellavatn, Iceland
Pahoehoe and a volcanic bomb in the East Rift Zone of Kilauea, Big Island, Hawaii
Columnar basalt roses at Dyrhólaey, Iceland
Pahoehoe in the East Rift Zone of Kilauea, Big Island, Hawaii
